1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab249d133d5b9d2e428feb8f160db02b2891c91187f39d73e0c676587d0f77d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3960f95c-e69f-4edd-94b1-321c2c78673f.json and https://artists.proofprofile.net/proofs/artist/3960f95c-e69f-4edd-94b1-321c2c78673f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Overture - Original Broadway Cast Recording: "Spamalot"
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2909414a732292754425d48c26fe8cc23c7a0ea7d37d4e8a0652d28921a090f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500064.
Historian's Introduction to Act I - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c083e309a286eda84132c2a90c5a73a214f87dc7c96d36620ac1026587e868e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500046.
Finland/Fisch Schlapping Dance - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f4302f9c605090baca2083006aa57a465bbf3f1eea222f48b7efc8c1186af4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500044.
Monks Chant / He Is Not Dead Yet - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3466d174b972dcd0fe372d10cb543b38e4afed4c0eb6e9cc1aaed12fd42a69. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500059.
Come With Me - Broadway/Original Cast/2005
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd338cf7df6d7cd434b8b6d5e57b8e0c913742a48937adcf71c9fd4cc1330a2f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500042.
Laker Girls Cheer - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896a81e91b1ae070acaac68c873d447b526a6c5f73702e852c1d9c6d1779311d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500051.
The Song That Goes Like This - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e17ac798f872eff3e4e3131e1e919c5d9818fccd664d2d662e23495c50722b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500053.
All For One - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788d6e5a772c1ec2499393761ab7d88b9d57577a51177d0ee996311b5f3ac71a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500038.
Knights of the Round Table/The Song That Goes Like This (Reprise) - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9655b6e0ce9c79610b7dd399fbd5835e48b4b88659090fbad478b382aee225. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500050.
Find Your Grail - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fdfc6a6ef5f3f1fca4d49d35784a41d9bbaaa6ea1a95c12834c87f98f73ff2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500043.
Run Away! - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878c38fd7f5ea8f01813dc27b5ce7d9219e632327978fa7f4988076f426a2554. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500060.
Always Look On The Bright Side Of Life - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a80c6f58445fa3133ac7382869ba265358afcf561264b97f06bbd7628991606. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500039.
Brave Sir Robin - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0cec7c2d86a8a03971d888e813d32e7716f4bd0d53ea52f16aa60ceab6a46a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500041.
You Won't Succeed On Broadway - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf818379a55898adf1173c3d160c5b482312ed86b6a0384e8709d74acd96972bf. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500058.
Diva's Lament (What Ever Happened To My Part?) - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbccce03f2928186e904473953373d283e194fb21ac6582413a904e8cf79ddd82. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500056.
Where Are You? - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdebbaa219b435b60fad44eef767c2c8cab3f4015296d5428391671ef73d2e8c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500057.
His Name Is Lancelot - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8da3daefde5649d9e8f73f28e857a7cfbf26354ca7370d9dd82984862d2a36c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500045.
I'm All Alone - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e305589f3fbe00c3b121ab8060479f4c187b84bfc9f51e43f3607d4746dad4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500048.
Twice In Every Show - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd42fe82879a6429d5026396c11d3809d1bf702de5418561395369900a6e32d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500055.
Act II Finale - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4d18587aae27e9ffa4be3170f10510adf985f1333cd48094d51c64c383a267. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500037.
Always Look On The Bright Side of Life - Company Bow - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff87d6f6b21027695f980299e21d590784d7ad1f73f1cf007edc9e266eb9f433. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0500040.
She Loves Me (2016 Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d41ab8ba28e0aeac256b1417948a9d3d82b967e375478b6d9dd835a1fb1b248. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d184fc756a16674b2cd7b1a3e3502922a55088daa0328510d79e9341bf7f30d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d1d3e1076eadc20e97c1062a3d858e6f7aa1541b53013490d39293d2e62c13. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbb30efcfddcff131bf08ca4b38429ca84e261c27f2a19128d406417c825452. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb409d84e8ff6bdeb3b95c9fc753b418ce4a5137f5846b7fe8e51d824c351efde. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c091238781e6f6d8d91408be9182535d46ea0daf8f77bffd11152eeac3c043. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cb6ffa1217895e41b7b03a17356430961aa02acc9e9497c5152404af9f32e5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281f8d653154e04e27c1ddfd23951a259d8cb0302f5ae2eb7ee35d922d1650d3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a425b5fdf9c64814f1f5d1366f54fcac90e40c1592868263db7a06b4c84829a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2271fbc27011f24d0f5ad993cc7c04b304e15e0d4a0ff62a1811d3dbb91ee930. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd91bc8722b28a91eab7b1df6f32c02feb6744aaf0e616b9845572b109d037d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d72a09331275c402c638eb51ed4a206ef3e992aacd3cfff32a8cacc16b7ff8d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678f4a9d525671e3bf53a7d47357e79945ebee713bd060bd02b69df688a97f1b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83c35525557852e62fa1beab9eda11a34d42f49e7e7be3c510375a99faa18de. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8877a9a773ccd65d1bca22d4b6ab193c2af90804889875cd1a213e181ddb78. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf090df52066a1f3e78a704e9cfc52580bdb1aab7570996d1a67918f839628807. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c074c687b8bcca82cde6cf6e4e2dc4f6782fadbd2304190919018c1990a733c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ad923a3ea53049103c706936da7c65a562905331bb0f42c05d38d09a40a980. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad890916daa79ce54d1b3afc378ef5fb2818735f1c1f1ccb37eaf71ba3a2382f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f74f0144e7602896ac9ae4287b9d9965c368ca1c36d968865909eb8a3e5b50e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd1e1a6c932a3a084ec2791d0ba6ce61cc00772a5afd573a550e49b774e55ea. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973ce54998f9bb22b64bca3c51bc1bb3f565ffa8f7a2b051abbb7c75be972187. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679bc6a0d63d28ce3dafbfc3052412f196ef21c4118fdf50c449c2b9c6c807f9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5051889d1b0fa7f17acadf290989e685ec41e6889cccc8a37e8cdc20d15f4e5e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2c51a8196f547869b7ac628e0223cecbb7848c21e81e6ba1ce36ebfcc47b97. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31642387.
On the Twentieth Century (New Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a58f18ab8f85ffc3ff9ecdf4938ec815202397542abbf13479daa69b17b036. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB961553210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f7deadcb4081a2317ca3c65c0e076d82cd4fd63b15df6950ec4f439cba3179. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB961553211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49402518c6310ba4d6faeee7c8ed0b0d329a98e1110c81b2140d318e35981fbb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB961553212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90c8d977bb5777c19b93e0138575cc7892745178061b1985c5889b668397918. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB961553214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9a170b811b79f80ae1c5e5b0220485a14920926a491a9917e2db02846b024b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB961553216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d181012a6da0f63e38c3097ff3c632d41c40fef44758138022483cdce33f842. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB961553217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2616089ec4260d3d3beec22e1c16a9454c8df69533060aaee5452dbfb62fea. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB961553222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39de94c086ecaf03924864270c4fe6a99e528e968606c90c8696f0100e62c0e4. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB961553224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae64de0918caf5baa0d934b227095e7355d0fc9d2fab8bf345897a23c7ee6117. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB961553225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41dab72049e771a545220c7065850d6fd9919e13efd4f3b05b2867d59b979cbc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB961553227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc9cc98f653b840e6739609b6111a0456c081f9f2a9930ed0869b89dcc914c6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB961553228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8840408ae31bec57da3907b5d1f60b9502c9c4bf07502e31671ca221428e45e4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB961553236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75126a4c4f0b1d5dca7bf2ad2b989eb10003080d1cbd69cd9f77633ea998a96c. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB961553202.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Saddle up the Horse / On the Twentieth Century
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66949bf3b3ad60a62e9af41b0f118ed8a087630a2f8df33690eefc429b7699b5. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB961553203.
"Where's the High Priest of the Theatre?..."
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3cafb7da7d7fd09ef169b5191f51a398189a504d4feab5134b8cdb0e403ab1. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB961553204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed28340e7da004da51defa049b8c2749d3f76994a5309e4ffc558f0453b06552. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB961553205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0580e05269dbfd0970025ced0d105515f9601a3ca6fe056d6247fc936e64d192. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB961553206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ead928657d26d51e9c930c8d4547cb1fd2f4b04f258f61db50edfb0eef27e5. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB961553218.
My Favorite Year (Original Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6387452685712adf8d06dfefed0ebec501e7e9c389f7259702356615ad73f747. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19200842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bcaad6f0363df8d33cedf1c93cecc83f84daf464534695ac4ce001cbd39252c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19200859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e87622f1c66c4e818a48393a4ac21f9940a07ec26187b6d24455011d8bacc8f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19200843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e3ae77edbe6b666192cf872420860587bac7f535ec68ee6a38b2049f99b066. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19200848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825dc2503b6576d8267c2488acac51f7ba85a80248f8fb02019161a984aa58ab. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19200849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcbb80c40785b51f8ed02f790a6d447a61ea55a27d06ae13676d16d0f4f4c43. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19200851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27117f8ffe7a015af8c5524919673d2caed6a30d7a8e3db001ee12049ac984c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19200852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753fded25edef616f6479d6e85220b45177f854e8ea6dab387c5cdcfde153461. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19200857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae50a4352dfd18f65f1c3ec692e30f4a613a36ff3420b44438a244d91909903c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19200860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523e7010a900d89a3d221e9f2a9ca2f8d49c46ca7107fe44e27c9d0f9046847d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19200855.
The Boys From Syracuse: A Musical Comedy Sensation (1997 Original New York Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12753c10b783595386adaeda95afc91fdb0c91cac8d9986d69c9ce61745027d0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R2109610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c07632b8c655acc2b21088cd54e3d238402622e113cc956fc09d3259ab4bd22. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R2109617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f6747ff7f9df3e0d07ea6deab203ad39de9cdcefef26e4aab0f1d7d5c3bb73. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R2109618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ac5085608d3c9d0869a653beb8d9fa7da40b8698661e3edd0936593915a7f1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R2109621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690ccb65281ac12556ca6d8fc809e7bfec071e8344f1d829e712c9528556fa60. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R2109605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fe05259f485d6a11ae9e37d4288f4f778949fc7a82674a83cf5ca250b73d53. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R2109608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d26646d27e410ddd73f1c8478b11816f4f662f6e1f363466bd3010206df967. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R2109619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f06dda43010914a309fc0e18ff56451cf54588e1723ea3aad8ae7f369e1bd4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USKO19101143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bcfde066a8c60fbd571cbab9cfbd9f60dedbec822e7c20da6d15bfea1e3322. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USKO19101144.