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 0x827dfed307f021b77ec2df0c9d1a16cbea9431d6b57a687fe50373faf1931da5. 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/327eb0bb-54c1-4c70-8549-b863f8b4a63f.json and https://artists.proofprofile.net/proofs/artist/327eb0bb-54c1-4c70-8549-b863f8b4a63f.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 0x170c97756ba21399cd44a7025a4501e7e080c901de24e01efcbba7fb7158ce75. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ES6670300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3b7426c0c11f1e23949c653567aa1a831ef73acd3709caf8b893ce1a465051. 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/ES6670300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4172c08937467a8cade2590bab2167f67ed0e371ddaee73692888f1b111c4697. 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/ES6670500123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c29aea4d5c12e36cfd8ffa4b3c62abdb365bf68945a66dc770b1a7fbbfe5acc. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:45:49Z), 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/ES6670500126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f38ba6d1a530b3f8f6080e69d866a8531b6b71c2d1b02600d16bf179af74c5. 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/ES6670700250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b09c1101abb0b75c0f30e10f27487f003b2cc351f53a5bcb03e4a5ce9dc145. 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/ES6670700255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff604dd11324e4d073948e311c2960d3504770627b439df798c37b18c276257d. 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/ES6670700257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe1263bdea84d3caf1b3de1c1f4b90a508b298e934c4c16d942b9540b072e21. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES6670700259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482cf50ad1e0020c6312b890d941b638e534cb2fbe8f0ce4501ef5a99b5dfbde. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:13:45Z), 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/ES6670700260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a600671ca733db2f47dd9326134dada6857a8912bf9d4454f8ea91ceffa283c. 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/ES6670800386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b72955c96ccfa42f0b3fe1096472cdb3d66a8188338e5b8d84d84083a5751d1. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T03:58:47Z), 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/ES6670800389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3848d649a9386d55c2724bdf83b9cc98f12462b237dbfb623a9c2ae2e1fadb5a. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:16:32Z), 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/ES6670800392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ddb48c5795cfe44145d3911b509732f170a014148f09c1c74297994234d8527. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ES6670800393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4bf53fd19e3e141f6bee85681f8457da3d953febb6652ad46b9aae0de4fd1a. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/ES6670800394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc59938311ccc3f6e51be6a7e8307a5e8f8ed9ad89c92497d7c2cf84b2f3937. 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/ES6671000850.
Sangre de Mi Corazón (feat. José El Francés)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35ddfe686d6f1e2a31889016ba5074c93833774980fe7c4de8f0069bb3c7b7a. 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/USA371463251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8548fee8065b0e0bd995e0988991ce611f9b4ddf9c6d464c22346b6955e2903f. 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/USA371463235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4ecc59acd9990a41981605a4af6984e00a59c4e952aa9a3d8606f900dd2932. 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/USA371463236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7b83a0e010dff17738a1398a42cb80e69c48174d88ba70fd3aaec2a9d3a75b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA371463252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4de830cec836e49984c3ec82007564080067f01a458cb26aacebce2bb57653. 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/USA371463253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58eae4fcf07072646f7cb33b715a8d171d9c082b1e714e376c41f340c2a820da. 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/USA371463237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0feacaee13aad966c81cde6bbd11a220595a671fc1ef1ebb793bb118a35625f. 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/USA371463238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b110147cdc4a9ec0bfa0eb0c6008b3081e98b3561170e11153a12a5748ae6f6. 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/USA371463254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fa737e975b616efec636958aeb8ad2d953c81a4abe20f54787118104913222. 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/USA371463255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65985ed65888ed924032aced85985c99fc833223e167e137f9a109ea1c53c28c. 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/USA371463239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7f6f18ad6d3142a7fb398ca84f8d416972d1375ffbcd8ca46e3d6d5daab5ae. 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/USA371463256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229ca85b6e9c6b0bb312ef2ea52c5324b17025f5f11e7e2a7507d7a210a3fed3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USA371463240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaabef6f9739d03d9a09c8c2b0a8a860459d41da7b90ebb59122ff898010c19a. 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/USA371463257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2106301f7c81b210d162be3658000e2b426856ac0952b8dea3453e9f9e953352. 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/USA371463241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab1ce7e6f54cf2915c5b6bfe2c6388336065299a39ffbb6a412fd92346a25e3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USA371463242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ff1d91c45dca7b30c8f8b8b58a18a7515a53b1ea7588af5dff8779d780ed51. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USA371463258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8449be5f1928a90dd32acd2dbb13690c005c8c49baa33eeb43dc761a6140dd. 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/USA371463259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9663b9a48275b5b220ffa09708e7cf55150f822e69415688170df19def42ad. 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/USA371463243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd50c933272087411045de86f06d9894d2c74226b659ffebee2055faeeca2eee. 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/USA371463260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaace7728a0e652e4a27be3a6b179ae838999738bc66e8bc11cebb9bb2185220. 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/USA371463261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2523a556315c69aadb828ecb3980e19a493b9609e79b79f19094118820d03476. 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/USA371463245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177c7d2b0cf4f5a3492b3189e23a89ab1ccdf2ee4f21598faa4093ebf36d4187. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USA371463246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0138181de2cd7972599c764ccbe8f156b09fb03fde802ac38c93fff49bbdf8. 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/USA371463262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63aa8b4367693e2e9db653ea61cc0ef67b09a7054776ddb8352bfd3210a69107. 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/USA371463247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58544f0d326910cada5d62944999ee4269148cf3d464877968ed8f6296441844. 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/USA371463248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5c40b7ca3f573261be11114321ccc10d4fde1d7cbbc6c3d4b7f067ad889337. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA371463264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c351daad5b44e03ff15c390e771ac54be8465c057d0c287c237555321697913. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USA371463250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7b1a78a80bae4cf0a8f1a4b13deb9255625d13eb7f37988fff174e17be57fe. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/USA371463244.
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 0xd16a6016aba985c71aa22134ca353c2bf3647b779866fcf1d32a049e22afcc0d. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USA371463249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f8df7e3af77c4354733291d6abd2a5c80d6694204cac854b6519d70373d81a. 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/ES6671301713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a0997d48a5a5300eb5ece883e64eae4a290b022e624f6f7c6df94676bd87a4. 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/ES6671301714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2a43c9f7de4a25d78136d9d9e76716faa18ebc7d7ea61fa180a270bc8b1e5a. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ES6671301718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053a2b0392b29683c1f104ef9c75948e6ae4d79922b6339925de1ec8c1caf037. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/ES6671301719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c43b70e8e3225b2a7fd4a92e674a30dbef0def8053631d7cb36b828989876c. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:34:40Z), 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/ES6671502076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2945d780419fa15fdd7b08c38b52b31fc70960f37f3f8f3b40bc43d41f8ac36. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:28:03Z), 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/ES6671502080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860d4448fe199538310e00ae25789d5258e6441316a2750341953d805b1351e1. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/ES6671502083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4997c189a8f14f9f8c0f15823a034e2377b3242153a60e20fb6e733991255cb4. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ES6671502084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf163ba65ee8a6cf7cb415991f6abd0244044eeab2402f5224ee9379fabe91d32. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ES6671502085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76c91b95a84c6094279950dbdd12e3b6073cdaa2468ae945937ac423cbd9402. 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/ES6671502086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c0442dc030fafc9ffef3251f666c49bb7ca5c8900d3f9c3bf6e044a7b536cb. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ES6671502087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6294d734f7b9b6a78d729915cf03a00e7991b67228979eb93e811013ff053b12. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/ES6671502088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4238d5b9e9c2fcb84db150b84dc96889b228ee3f39c2c91ad7add1f9f246d9. 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/ES6671602909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d7d59593e9e6a53f07fd6707948b2189575569b002e738c0276344956db516. 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/ES6671803411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b81806d27a982eff941ebc93dc8bea0133699bf42ac8ff94ff310607e630a3f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ES6672204686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432bd985c8410a7708572a3b8b2b3b5d47fbc7c7e691ca45b0e6f8bb65ef6342. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ES6672204732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1bfd11a4dcf7841792a0b9eeca3c1968cb5e534a1b845897c8360466f89e73. 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/ES5151503728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a8419e891761b6a32b45f9c57799dc3d6c130c45c84cec634c6c065754711f. 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/ES6671401911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a8419e891761b6a32b45f9c57799dc3d6c130c45c84cec634c6c065754711f. 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/ES6671401911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34998105935dbb993fc0587b48e3beffcc45619968d6fc24a4061bf849ac2a1c. 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/ES6671401791.