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 0x401fa377f1ff6b7d608547a145091bc205534cb8411e8fb713faaff57cab6da6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a64844e-a065-44d4-a5b1-177f59d49646.json and https://artists.proofprofile.net/proofs/artist/6a64844e-a065-44d4-a5b1-177f59d49646.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 0x7dd517952b606caf4a5004d52d5573a411844e55f5549206842b1c169bf6267b. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:05:55Z), 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/BXCND2500453.
Eu Te Esperarei (Always Remember Us This Way)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa750822a0241d01567e110dde708bc81e0cf462c8231f36cf998ddd849037d8d. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:42:35Z), 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/BXCND2101760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225cedb054c7cacd6ec5de4f9a056ffd665ada5be3cef95a515fb707b1162ad6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BXCND2101761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafdb0b9aefb051853c067e9bf70dfc7352ce569ef74a909a4582ac2ec3c11ed1. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/BXCND2101762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1838bbe70931f3d33449ec7e0a49f350acb44dc0948d911a1a2860fd138984ee. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:30:45Z), 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/BXCND2101763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1866254970d471ac9902ecda0b305a0141a22d6ae2155c7fd761b0f144ff5975. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BXCND2101764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf000d6d84bdc5182784a11bc726380dd6047ce8f86638f3656186ea6b14931b. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/BXCND2101765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe960f663fb0de49f3e604815e9dc4ccb18f217ef3c0ced23d85014c12118b97. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BXCND2101767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78cdb05eb610212a476ec3d8a1be2c5f7babea99681ec890a9829de890e24552. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/BXCND2101769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382aea2575e5a69583716b483fcf9aabfb8aa5db9d1c40657332200d070ab924. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BXCND2101770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9debac3d781c56191732ada119a9b06d448386e2a731a6727e9dd639fc6b6b71. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BXCND2200215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af6385db554a5cf76b4ab33abf88667e8b747ba5cbdba921ad06626e0fa3beb. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:31:31Z), 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/BXCND2200214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ee99ee03e2f379bc045369f6154b44b6e77c935aa05075599fee1ba7c773df. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:48:56Z), 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/BXCND2200212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb713e0915e4039f8f12141f586a3f6191826adfbd70a296db7129ce6a64537. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BXCND2202858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5f81b5bb9c82fe62c8457351d1f2ad2ddf59792c267988ec21eab133918867. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BXCND2202860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2022a36562671d50ae3d3350f7dace9bfbd55e137c6b9be399e063b6d66960e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BXCND2202859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7313a666e3f8dcf9b02f482d3962829b922f26fae3834918397da69778b997c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BXBMP2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ad88e4419345a95efc9872e150ece24f4ef57c659ae5913ebc903d61782f3d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BXBMP2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b8d4b9fd6ed2e92bc8a66b836215957d50995e30596fe7b5577123f6d88b70. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:35:22Z), 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/BXBMP2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69e316d73aac3d88762208e8a7be76fdaa6d27be6195caf1d7c41e60d37405b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BXBMP2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c3d2b92cc31138dd7944f863ab9de0359b121f574d89d31d3de67c54e032f2. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/BXBMP2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15dfbe168a05c5c9a18456423ecb58c9b4390d1854087e2b1d224a9e62496fb4. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/BXBMP2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb32e594a55f9825ea77019b096731aff906eb69855038fd2607c548e2f909e9. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/BXBMP2300068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919f2bf93ec4a7923ed99032be09e830d7d6c5cdbf3fe8fe43467f941d92caf8. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:09:21Z), 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/BXBMP2300235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f44a04c8de806bed2832a0c8395cd8d3497f18fe0f2b122d46abf42cf9b0581. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:21:00Z), 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/BXBMP2300305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ccedb596d3f2acc5e3b2b7f53f9608c428a9998cc8e0f655682c88b64b9e65. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/BXBMP2300387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96c830140ca8e1cb623cda9d493d6ccf1ed27509cdff989c7f5af2e9026af60. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BXBMP2300388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd9afa734d522098b798f924869cb5814424ec66874bbb175abec196a49fabc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BXBMP2300391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0c9c8cbb12b2909327dedd6ba18d7580b64a78ea1063c4befa916afb195a2b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BXCND2401038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d3b6e76601ffd36d106c7e78eb881cb646dc03ad12fa2dcdeabef0209a9a2f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BXBMP2500023.