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 0x162d4838842160a5c175ecb150017809499671ab8e4322c4ebde68f28d52f4f1. 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/e99da028-6386-489c-9753-364e42f8bd34.json and https://artists.proofprofile.net/proofs/artist/e99da028-6386-489c-9753-364e42f8bd34.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Harlah NU Ke 102 (Live Perform Alma ESBEYE Orchestra)
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 0xeb1b555927013430a0f1da29fee10d749cc6afb815d460eb15e2d0a7b91d5da8. 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/QM4TX2531395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4488b17754f499e6dc76268ce1cb8b5b09ec5a567c489b710037d1df78eb78. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/QM4TW2584700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51944e98e6c86b2b72437a72c5de83d864f567526ab98ffa635636f90e60b6f6. 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/QM4TW2574521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2878c9ccd8afc917bba67506d58ffe9ee96f20c925992afe0adc27450f029932. 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/GXBAV2548655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f1ea96baae07974f9eae80cf8404316a156d2c7c550eba31eb9e991a853304. 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/QM4TW2555059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788ce731277a497c6a632e5856417e1370d95eb5bd47f342a4692ff42d2aaa8f. 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/QM4TW2529244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168e4c013d013a0504042d72a065f8c9d3ede9bb1ed8b0ce9104f12bb9fbd8c0. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QM4TW2522855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88ad6b161d7f958e06a340d136d126e5794c72abdf5bdbcbc93c71ea5504af0. 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/QM4TW2510498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab5c25d749339ee396f1f5e88832fc858217addc0f34947b28c28e6470153b7. 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/QM4TW2503214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce43ce02a9862d6b8ff1b041892c564fa584db1e4a1ebad3e7a367cb0e08c4d4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:15:32Z), 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/QMFMF2467704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a988141141c749ecf7f8e7191b73aa22bd9445c302219ee6710bdb6d46d48a3. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QMFMF2461180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d4767cd2c62c8208b992c92da17f89a2674fdec47be16e2a2b8689460a7771. 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/QMFMF2439683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239efc8c0c4eae1d433d25c84de2433bb98c0d5446a9490dab0d89c06f54af10. 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/QMFME2485647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48269ced0a34b3eff3e46292ae77cc71613b7fc25223a038c21a13fb59086b47. 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/QMDA72487908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d7ee225437e8ed84102b7e76a2e7958396351b1465310d4ae6741e3a868b80. 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/QMDA72475471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e5cbe9590a57f51f320da4d9957df32d6d82e719c06c0b9c4d5d1c8e72fc35. 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/QMDA72459802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea324052fa94a3d73bcff7bdb9f7599f6f648693a40e340637e2d3582d5a574. 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/QMDA72452952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e48afafaffe002b3a065df290789ab39c135c607bdf45312ce9b64a7d5f898. 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/QMDA72450939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f6600b2a78276c49a64b436c7ad4bedfd9f2e14ab0505f8e7b98300e0983f6. 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/QMDA72415811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0909cd832092e7dc389319090714451729d13f012449d61fb82ecb4c501a171f. 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/QMDA62497274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0391837ab374055493274945d3684f3ff3e0ec298c19946b8ac8e03067082c0. 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/QMDA62442810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1b3bc61c4d51bda6f6d291b236a181489009d5817e68f3bc8f862185f9747b. 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/QMDA62413643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1edcfeba090402a1e8c595eb0c64bf6933842762d51069742a09a978d11e262. 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/AEA3A2461442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8bbe5715ce17c7b13b1b3194f67ca97b05cb194a3670baa001dd4e7a160546. 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/QMBZ92459397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5ba393b74e321722e07a903b68850f50a2827ff87b15c6303046e910dbd39e. 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/QMBZ92439121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73cdcc517ded00a496821ff1ab40ec047be412492fd31df8217c4d57b5d24c7e. 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/QMBZ92414700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824db8262966e98fae97256ed313013be5f68f74135f8ef086ec489153e37cca. 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/QM6N22512377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c1991c1bb17b99c56bff1510755038d9e055973e486be5897f99d7231ece6c. 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/QM6MZ2589618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7f056dd514615932c1e07038373a1e6dd39389fb5232b1818bf5f9f2fd2bba. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QM6MZ2550072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd61224af2b947cb07348ed25ad39084ef6021016a4ae6f3228848ffbdd1486. 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/QM6MZ2539606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f8ee55498d1dac4b5336871cfa1e2a8740f97ff2f5e12573feb960648cc129. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QM6MZ2537516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7835ccde8d60337650721b7b1e625c4c56930ad033e4cc9f719c899e03a6dc5b. 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/QM6MZ2507375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50973c94419d82e2c53f047da35904ef45e9e705b4fe47a8fa7a305a0844fd42. 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/QM4TX2593212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b88325e195c813787cea19fe2d6e00fdd717cf60b377632c0237a010f8c6b43. 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/QM4TX2593470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab45aca19120e634b8c145a251335c82abc1df050ff467fb9ed5f50b13bddd2. 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/QM4TX2560843.