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 0x753355968ce5086df113da64d511bd71acfa9b96ca1d92b8f7a5d0f0226e90a8. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5f4e207-1e03-48ba-a119-0b3153476d8a.json and https://artists.proofprofile.net/proofs/artist/b5f4e207-1e03-48ba-a119-0b3153476d8a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x2d478dc927b2cd88cdb3e70943dc806850d2f0f789eab8253d7565c7e7d33abd. 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/DEWG81800238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22534aee6879a823f903241ba18c4409e2b16747b4b2964585d61a4e9d7c1fa2. 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/DEWG81800242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66990636d60f993693fe41d0ddc78d3e9c40c6caad9f35e4ee6478fe1330b02. 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/US57M1177701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3b6d9e0832e1599f4732ec40d5303f60c438f9b9558dc8a8ef120d16d70bfe. 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/US57M1177719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82369f3f3c64346c3fd14f82b50317fbfc4cfb73b6e41c77fb796b4dbad8ec10. 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/US57M1177737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22a7557865317864c9b6239802d6f27572a1d00115e5c50db6fd96e36ac87a0. 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/US57M1177703.
Immortal - Icon Of Coil Mix by Sebastian Komor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d827fc2ed6d9cf0ce4f02bb2a3079d5f13763d673501488bfb40906ad7acc68. 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/US57M1177721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103b155aa987499282607d61fbd5c49c155a5a5ebba6b687b43f1f1b0e242073. 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/US57M1177704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3df61b8a78d9d5387c50c92fc1df5281ceecfaec6187a7204966a4a24e2c34c. 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/US57M1177739.
Who Wants to Join Our Superhero Team? (Right Now, It's Just Me & Jim)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d701f94f5995709ad88c89183bd6a7aa80e40589d05a107fed302c99617a519. 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/US57M1177705.
Pack Your Bags Honey, We're Going To Hell! - Road Trip Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4466b236d38f3972637972c829f2c16dba82d25b10761f3defb9cc8275ea6c36. 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/US57M1177707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5618e603104c496c2945b1116f43e55e24d82e34337ec86944a6daea7b8f58. 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/US57M1177708.
The Perils of Indifference - Stahlnebel vs. Black Selket Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634c65ff4f632a333184cce9709374e98138e4cbd405a22dd0f874fb397e9a9d. 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/US57M1177726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d860758203c709f803b0a34e7e266981daea018722f1597b2749b8b9c7ea12a. 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/US57M1177711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237e3e3cbf88e3cbc8cdcaef69e6ef2142fdf6557ce05a375de62083817bd49c. 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/US57M1177715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752ed31d10b2f8f1c1062de26405d444fe1d2bd97e480c460704dbe5f796f319. 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/US57M1177716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74dbcbe0c28bb7ba12cfb38a92a9ccd444a50ad1b6f7a1e261d177bf594acff. 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/US57M1177717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b12dd5d702b93cdac7a4c3fef93975582e2a75421dd363a81de36ac1f4dcf89. 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/TCACH1567986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ae664d4534bbe7c97a62c90c355958e5651e6871806eddcfc1c675c7731b26. 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/TCABY1411310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f248d910e14c4d1ecee6e3ae9e351c51882f0e717021d3c5d24471d576f956. 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/TCACH1567982.
After the Party, It's over (Sea of Sin Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbed23eaf19f5fd331d6142c21df7b439fb853265f56c5d20a5ee847a123230. 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/GBLNU2205126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e56ec699b8a3e0cf3f1ccc947d51003204d572622eb661b6a9e482f48d05d72. 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/TCAIB2408250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2e8ae55ce27d2881fcce1acfc6e17c89f346e466292a5fe91c1401b35e7b1c. 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/TCAIB2408257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05c26fc17314c92c2e893712c53f348b437b815facf5614525e9f7d068a54ef. 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/TCAIB2408269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc70d93abd211a46d4d5ac507de4786c1b87b7d4e339234062f61365fa467a05. 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/TCAIB2408309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921cf1cdd2bc2c121f0367e5a4b76ccf09c3ab37d06d604967fbf52ed3875a69. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/TCAIB2408247.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53410ee26ebe9e805ac6689901fa53c3014ee77d82b9e6aba6499154211a2de. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/TCAIB2408263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564243afa76b74546e6f6a017be01d4f619625575e8211b1568e0918ffdea376. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/TCAIB2408301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a21267f172e00263fd28e9538ab119383a93f573717b011ccd45b0f04635f3. 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/TCACE1587259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f6744e93fbf5783ba1846e4fe456f5cbde8b98f9551bd5a0e68e8fe77f6ab9. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/TCACE1587260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d8d26778b4fdd94ef6f2fdebaa1c67c9584c973647c2228b60382198e76b24. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/TCACE1587267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa8fad7b228fbaa6690999f6f8c23d1a4acbd306c0396c7eb09375f07506735. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/TCACE1587269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5442e320471715f24d86d16c9ed1e75747c215cd7d4310adefde24e09570bd. 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/TCABY1411095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5052c9d1eda91c6bf04790bd94af2e546965dce4b8141295e2d66b1a0179dd. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/TCABY1411083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c2a88d1508250a053b223fb7b19987c58e8d03070e2326dfbd3d1d5dcc3414. 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/USHM21907280.