Pambo of Nitria (died c. 390) was a Coptic Desert Father of the fourth century and disciple of Anthony the Great. His feast day is July 18 among the Oriental Orthodox, Eastern Orthodox, and Catholic c
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 0x9ed85bde1b6a30f244ca835856fc8b7bba904ffc3211c1bb7eae9a6dd0cb9a98. 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/65964c29-f62b-4100-96c9-49c0c566ddad.json and https://artists.proofprofile.net/proofs/artist/65964c29-f62b-4100-96c9-49c0c566ddad.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 0x0cafad0e4d73b35d756d71f7cdaf3e963d430f86ab1f504dc50322a1f9a3624f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:05:32Z), 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/MXF010600524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f10d0a3b0c218b8da79db3f2989b394579e3dfeb3f147df55d47d2c4688cc01. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/MXF010600525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3bf341f00a8e0df3092f044446f085a46a1191c4a12a91fdea22819cd9881c8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/MXF010600527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc87ffc08356b0faeb35208d216069596151d293773fbbb2314de376c863272. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/MXF010600528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb03f9329f376e0c0905eac3a980452c2b4d68c9d74132536e49a508ae163e6d. 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/MXF010600530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18eaf1077b4e61fe2fcc7a5ae126fb5e53b678df9e2faebce12d2a97d3171efd. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:21:30Z), 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/MXF010900537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdd21c4b8310bcefad28ffb4be5cf9ab07a103b83e6be362c1210178121e9e2. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:45:58Z), 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/TCACB1417507.
La Princesa Caballero: Lado A (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b701b41f8f3c3e8905e05734cf85249d551c8e707176b87edc8b6063bc91e0. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:37:18Z), 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/TCACB1417506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf6df645a741ee50e1b54fca4713d884bdb20a41d71208c530292314c7e7082. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/TCACB1417510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ce09e8b240ca8ac0c972114d5d05a6b3ceac7631efc4dd77445c79ba60ba43. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USA2P2456705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa111453f6e80af9b3ffe12781baa6e03f153d612d09f4edd659ac671fe20003. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/USA2P2510616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0cb4e2c95edc3d6703a8164d55d376b8d681d261f8d0858f8ca75758ae09902. 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/USA2P2528182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce95ad81cfc272ed2e6071ac632b8ef148d90096bed456d720ff0f5d3191245. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USA2P2528183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc62bafdf7ccd3ad231fd1a8fddee1b3af87446e51a42829850dfe14fb00c58. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USA2P2528185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c728f9d0b2a9f93bff3430ada4e1333d06482a02b9615a8efe5cf611ff177af. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:50:37Z), 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/USA2P2528186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa111453f6e80af9b3ffe12781baa6e03f153d612d09f4edd659ac671fe20003. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USA2P2510616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1e3987e668f4c616a9f237cc8607fef895652b45ca04ea42bc06f6f0aaf8b6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USA2P2416144.
Humanos Como Tú (Soundtrack: Un Tributo a División Minúscula, Vol.2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910a07791fc299603347fde7c9e51f9bd940cb66af8223f16ac19cfa362f5b98. 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/MXF010800201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69eb765a22a9b0bf8eed31a253b604032a6b2b4a0b9da3c365f5d7a49eb2a82c. 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/MXUM71300385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910a07791fc299603347fde7c9e51f9bd940cb66af8223f16ac19cfa362f5b98. 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/MXF010800201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620bc538d276cd42fb3a8e996e37ad518624a7ae79cbcbd57cdcb30dfd91764c. 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/QZW9L2233851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a3b59be45495ab068247bdc116fc8638edde86a2f052e5978bd664ca5e626b. 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/QZMZ92331033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd9e08c06de23a231692f17b22103c560e9b6bbb25a1a8412119b6f4be29950. 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/MXF010600522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7811986f8e5706d3e33117770965603e575aca6f04ab47a341806e806d60802a. 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/MXF010900241.
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