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 0xb917dd68cdc93ed5470292c29513db6cf659de5d353caac28595a2e36e8cc35d. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43629edd-0327-475e-8d82-9e25f6374a84.json and https://artists.proofprofile.net/proofs/artist/43629edd-0327-475e-8d82-9e25f6374a84.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 0x7084e303d209c05b3c6f1d10a540ae0dfea4f794841bc5fa18d2d4e2f54f622b. 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/UST8K1853341.
Aeon of Annihilation (Remixed & Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a4a73bb7e664e4ffba3231876263afe60f840963bfc1af247cd39308d2dd2d. 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/UST8K1853342.
A Display of Power (Remixed & Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2306120406887ceeaa475f3abfe2dbf6481da641f542fb213a8a3e497f679267. 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/UST8K1853343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0db92ad2f80efb7f9f278b5eebb809599564c5e83bffec0cb3dcfdde47f0d0. 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/UST8K1853350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c54c8a8b7e3661eaf9f9edf1fd4e132073472d4ac017f2645df7ba4593096d. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/UST8K1853344.
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 0x05bb52d3ad5978d3cb05e619db587f83e648fb26a10c601c0aae18cbe309f376. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/UST8K1853345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68b94abd38305f5023e5dc97f56cdbd4f0fc41ecc928660880055c21b0fefe9. 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/UST8K1853346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299cd222df18a2a043908add9ac7daac6f98045c8994a31638b27802daba9a07. 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/UST8K1853347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a08f6878cf2051096824d18b47a87f6c4864699c90caac84f29cdfa95c899e. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/UST8K1853348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784893bd915f261140278a094e7b3b22314c56dde530f5d9a78b0d39c1ac38bc. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/UST8K1853349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d281dfa2d3afffaf361794a405f6483b1e11921569cb0e5b414a853563ece1. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/UST8K1853351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c3a1646e2b63a19d1e8d986b653cc624451ea70d5fd4ed99974c1b39e6ee91. 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/USHM91435649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f933ea285d87a27366b274ec7927b8481472c2338a978209892424a6b01cffd. 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/USHM91435651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eafe5816e8f36c767bb1e70ef8e8b2595223b55d5221ee33835a9c533587bd3. 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/USHM91435653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ea8d5475cbe319a4bd837ac51138e914759d49a2cd894268cce9295c4463ee. 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/USHM91435654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb8d375865f90fe2a8751d00b1b1c852f5fca0bdd5b1d1c706339f18c00f3d9. 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/USHM91435655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8b90e4d34e1282ac4ebd65912845d58d995435eacdf3c4be181154f9dd092a. 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/USHM91435656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19030262b6cd609876977903aacd3d109d162bd0d28869012faf32c5e39c7db4. 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/USHM91435658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4174a26fffc1fd14c989507913f1038331e08d4b9f5a86be885c56dfad0593ad. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/USHM91435650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65266781795071a2996995d86337832a2f30cb1036025525f1d1678d8cb883dc. 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/USHM91435652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3aff22592c16d304e5872eeb560d49ea6bd37bfa21f4ff503a9581b85b9708. 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/USHM91435657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8e301673c5e84a473929ca6a8837760b8e6cb79d78e196a8572fb2960c38f4. 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/USCGJ1357104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d13f32830d227e6f31823bfb49c8b37d7c8387d9ccfd6671d64ee57fd0f2279. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USCGJ1357102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60093539edaa243b555a5dfabf733c15f3ef594f364817d6d63ce4301091bcd9. 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/USCGJ1357103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4916d9122c0a89f4676094a3aa3d0a0742f234754c551d4e32a68d8c4ab2b50. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USCGJ1357105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e9264d03f312d84441335ed729abdd8ce066afc94d0e955c1287ece5147419. 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/USCGJ1357106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff718059dc18a33f45748cc111952543534df77c4566dfbc27d4219b5a56e83c. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USCGJ1357107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345bf79e5f58a6d678ce98c284e42b79c7bfb641d742096071449e23ef574d21. 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/USCGJ1357108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59f5b526f0d0ae5fd8eda6ac3eac545733432ca465fd5c50284721ecfbf91f8. 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/USCGJ1357109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26eabce576fba1604cb50c5fb5cd14ac5606e7995cf8a88407a1a6b6eb9f6caa. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/USCGJ1357110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066af945eeb9c2d66366f28a00f171ec273e82746db6e95ebd4d40ffb48a4037. 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/USCGJ1357111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d6d78a71c41ab3542e8026c47750fa09189e028bf663a2070c93609baade26. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USCGJ1357112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a55550608ba9f544bb1462ce3e7ddeabfdb8398f6cea966b752ab0ccde5495a. 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/QZ8LD1956447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487f9f7a346f3143b37c719b1aa864cdf217b8621002814b44f3a4825b27786e. 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/USHM21890417.