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 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 0xdf74c6c4de5f740dcb99c851678bb3cbfc825cfb282fa7b9637481eb56200720. 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/d280bb38-ca3c-4e15-8f9b-1bce43955833.json and https://artists.proofprofile.net/proofs/artist/d280bb38-ca3c-4e15-8f9b-1bce43955833.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 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 0x15896facf557ffe4b35e1d5b24b52745418bedfcfb204234c92fa9328d06e3db. 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/FRX452338965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7f9e88fd1ba988a0fb49640407ddda9cc95b20e4ee44f5034654c024bc9488. 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/FRX452338966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e51381c578836794efd33e4ebbbe4c1600872e821ac8fd5038454b912c64d9. 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/FRX452338967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7ae308127dcc90c2a45272b9d1a119c5039ad19cdf60f1ec2d847811a854b5. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FRX452338968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b39bb7a41a4ae99c04a17789aeef496aff071d153a08110df11afcb78f83c6c. 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/FRX452338969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbb987657d0f97f814a1ad516d55309c3f8e8ae547bd35afbcee4d5fc08049e. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/FRX452338970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2a2daa1bf9850e10458fa1b7e687cbe71a571467ddd11ddc93686772c8ea1e. 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/FRX282343787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99deea66d6a15e7cd510bb5d8ac72b0dee71ad790b04d0b85d5f49eca3770337. 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/FRX282343788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1549982820797869398adad1894a37ed1d065619a119609468d368c01f6572. 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/FRX282343789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0c5777267e7a450667f664a79e02b15eb66743e3a793d16407d61665aa00db. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/FRX282343790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a391e55d3ef111619e9d41305d28cd5802472fb61f18d366718cac869677c8c. 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/FRX282343791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81801af4108199b905b074a930618c0fd219f3983a569e4f7cb24a244ed7a6ae. 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/FRX282343792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7ddbe3e2b5e3018de72a1e12eca0198b5ce1e11df798fbf0c4c01201f7ab55. 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/FRX282343793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21b11dee3dcdee3f8cdb86156a9236c9cf72b60c00dd55a7d41e0b15e56b267. 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/FRX282343794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc70a4e1a9ea79214dfd1834252682ff99bedeafba54904ac2d1d0d48c2bd501. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FRX282343795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195c6508c159334242761af81194fa8cafd115a1b9612dd0637e59517092501e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FRX282343796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d925fbd9325a5f587a80d2ac200c42d70a0bb0e57e3febf8c6d7bb579bfa3e. 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/FRX282343797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb835a651829c74edfe0b2234004f2d6e81d9add9337d8b18b186f0fc709d3df7. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FRX282343798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ab7c3c841ee6ae0edc09cdde5a7cdf0c8647985a681e07d9930d8a3d1b5af5. 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/FR2X42381198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9fd4b9be361644050ea5500b1394f618ffc889c9c22667be71c1d02b0f3ec9. 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/FR2X42381199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4161dc787502cfcae075d4df56bbb20e781df78a4b334e4942568c5f233448. 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/FR2X42381200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db10cf5d30f62756b5175ddfffc1e5075e00901ab19cc977440dbb47a30f1ef. 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/FR2X42381201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf57b42b348dcdcad210f28e405f0c85f38feb8953bc0452da5fd832076083f1. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/FR2X42381202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adfe539a2cdb0f79556ba77465c893a3fac6b459a06afcead47aa640b8bb1ef. 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/FR2X42381203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8177373130af270ee3b42a5a0c145a68fe44e97bcf321166a3e6d370fe5d42. 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/FR2X42381204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e6b0a9bcdf74ac1e6b21a26374a9387f6d6ee8f0214b90d79947999222d658. 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/FR2X42381205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834ab3608af5bbb43fa50c3e3a44cc6a3c46efea02163af57ed4912ec0be2e45. 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/USANG2247098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf607c4495a11d38408368e4efef3fd4d56a82e4a94f0a07a190f46708ef10e8c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USANG2247099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955d34738e212bf85543d671de83f3aea01111a50ededa36f28a71cec4ca7404. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USANG2247103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b414e51b903f53272d3d637e33d0f51c8470c65d1656cd2af18a4a22fac752. 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/USANG2247107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8171b7a0471137933fafc259b2f6feadcba567f7aaabebba475fa66a716b59d. 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/USANG2247106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6574474709dda81b34e09dfd26d5c789194ac1d4aa224f97d4d768ff032cf2dc. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/USANG2247105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09f2c560d0f96bc40ea287a19a1de18efaceb8474f3cb26babb78ff0325fb62. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USANG2247102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c03e12f50be42b58c95be9d7841b854099f6902189b47c285473bbc1b24e50f. 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/USANG2247101.
Las Mañanitas Y Olegario Chaidez - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839bfb0fb46992ae9a55a3898604781a49e377a5d8e7aab61eec52527ecd8ca4. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/USANG2247108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccaabb62689f4a5384bc5c6b3a2f30ce6c18f11fce79676992d02ef63b16cb46. 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/DGA0L2358133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cae457f68ddc70f810214d15c06458d80dd031f445b19b96192b2aa432c880c. 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/DGA0L2358134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a18b24492f019b079254a149bae23f9c53ce659ba566bb61efbe7f39fde60e. 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/DGA0L2358135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247b710f8688b1ce10872c47110f64eddc663ef1766302200e4395fd5bf19901. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/DGA0L2358136.