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 0x6a8beddc6e5cfd19b1ffd9cdcb500229a922446f940921604e2e77e0f737ea8c. Chain 2 (Bitcoin): anchored in block 953730 (2026-06-15T02:47:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/938dbe7c-c25b-45f4-9177-75e0ec2ee2c8.json and https://artists.proofprofile.net/proofs/artist/938dbe7c-c25b-45f4-9177-75e0ec2ee2c8.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 0xbd9ee58c2f8407e0c018d51e258875b21af95078b973bd2010cdec4e5d2fdb11. 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/USHM21784988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19ccfb088e919594c38866a9a879a4b278d96df6a1c87652d6dc3654aeb2664. 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/USHM21784991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d6d7b62b84bba7d4e5a3e837f7dc8593f57c9f50de85a4aa3402e6afab6b21. 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/US3DF1100866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bd094f7dfe6bd85b5dc2b0d62ac1153503af462bb8e1944930162ccff37ac1. 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/US3DF1100891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb9a08f3d6b59d05e4339c301dbf7124473b48d9541ef3b5bd3662d9c30dc65. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/US3DF1100855.
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 0x9cfe35a3e298df16534c8490bc03d14dad1d0d47d3afdd0420b7eba3f0b90c8a. 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/US3DF1100868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b170683658bc1f860b17638f5216a121625ac6d8dddb8a003a8cdf0d004583. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/US3DF1100870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1d70a428ca128d11e4eb8e8ce443349d559b544781a9a2675d1909b0f5de40. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/US3DF1100871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7142d25e8cca5d222da9302c9cd33ce6de1b50ec113456648074c0ef4dc63147. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/US3DF1100897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bcfd8433b1db7153c486a908604b5a325b0fe7a2a261d8b9e9896b8e0494dca. 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/US3DF1100898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d8fed524da43bdfd86d913d6eb4fcb149e548fd9b163fa91e91301ba194913. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/US3DF1100900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b9f51c0e3e322aa209bce83e9c7f7525e972baa0760282c6de958b9ed96f1e. 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/US3DF2261976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c6807b9fa9316d6c434de2d68fc82a4cac66d9737608263f1e01663bf679ea. 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/USHM81993756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0c3cefd03e46a979128d9fd9146eb462819289f0baae0a92bd975b0f9c2c62. 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/QZDA42348378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3b9f27fb97f91fb49af8aba96278947da187c7fefcebfae05fe0052cd0e5fe. 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/QZNWS2192571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7c8aa71172fa0f744b55ef2276b9a44c046d1c2fcfc83654d3867c91981d73. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZTB72257532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8431af40301695a6f5b573537e140124d3fa99b0249f535807987af72117a1d6. 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/QZTB72257533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1393bd19fa4bd605f585db6142bd20b352edb161bbb49124cafd5154ff02f0. 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/QZTB72257534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540d283f15cc651f950fe816ae3d342ab8de46933f28277a6b787bb8bc11af1d. 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/QZW9L2216328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce6c8edfdac734fe6557f910984b7de7482fe533038de9a551367bae82143c4. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZW9L2216330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd635c00fff8743031524df54d026b154e30ce6bf964341975005be71273a0808. 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/QZHN62302229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef300e467f1ae1a4c43f4b199e14a586f658f19b97fd7e8283338348ff6df38. 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/USK9B1200284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01fcf4eb5db0b80e28b2b12e17877e11eb799b3627c779d92d350fdf8681fd33. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USK9B1200286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b06214916f92e75d092e28f5d3858db148232243538c07a88ae3cf220981f5. 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/USK9B1200287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbec2f1958b7c89b66af15fab7d57859bc9648078664df6d289d79350570d7b. 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/QZHN32477998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1fc48fb807d1e589638d221f5e896d0e2946f11927f37f5025d278d2083aa24. 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/QZMEM2241481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463cb2e73cadf4eaeb152f7a603d3bb23e5486755cedc0cb40370758ab5dac17. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZMEM2241487.
Volcanic Magicians (feat. Jus Allah & Jakprogresso)