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 0xa559ac0062e55cdc321b7c5bc848b9ebfcf2160e76ff4ecf0691296aea32f36d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/58723b80-fff7-42d5-8e57-3cb7eeee2523.json and https://artists.proofprofile.net/proofs/artist/58723b80-fff7-42d5-8e57-3cb7eeee2523.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 0xfb1029f41b39e8ff48cf7d0095a9a2f67ff91500478b2a672d8de4a5a6b603c3. 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/QZHZ41993313.
Creaciones Inmortales de Garzon y Collazos Vol. XIV
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f417e597d58d128a28c14a2a410373fdde84669820fa34ba315b8a723beffe2. 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/COC017502769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f456a6fc4e3936c8c9d7b75b77ee00800b5bbfea1f651b15c98c49de1408e5b. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZHZ41968984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9567c9edc4dc3b43c2d6a4db35fc3a38a7e60d61981ece98435bc3389604facd. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZHZ41968986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0b5180b8b56209e69ac88bcd2d8b7905117038cf30de37cb95377e5df99a4e. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/QZHZ41968987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99df459372549c742af4544df25a0fc3359d0e1a508c01756af3bd5ff12df8ca. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:48:46Z), 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/QZHZ41968990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98fdd9d8c22d78593a2ca932356088029a4d9e9e02234928303fe341c609f96. 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/QZHZ41968991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3047bdab5d1c390b95630e2863eec93ba521265b3456b0ff2be8f7681967c2. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:47:12Z), 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/QZHZ41968992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9150c84eda34dd9b90b3040449794da375b92fa12d030f821d585f291119f1b4. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:10:17Z), 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/QZHZ41968999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39de2b5e110ed673a152744d86ff5dc8ae573c81f20abdfc4f14d9602e890ef. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/QZHZ51905829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c1de1737b9128a6536de9e4a17ba0ecf5bed5b41ef52d185c6dbab6ca64b1c. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/QZHZ51905835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe923939864d84ab1bb31688f81987a59da6674a11edafc9d4e617b9e72351cd8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHZ41968941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0943c7635d8436667e813f1bc9c774fa869ea26f279f5502266ec9de27896c91. 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/QZHZ41968943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284b80d48b20f681c3c4c7652535970101054e31ee291702ec0cd6bfb8cbe5a3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZHZ41968944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f49b9faedf5af642e03ffff9c6366c1b27a4593591b3d624f5435e390a9b3a0. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZHZ41968947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87e287307ba7be1c36d0dbfe8d30304a43210e2119e840721cd85a168121fcb. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:33:59Z), 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/QZHZ41968948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f65c25db7465af6e4ad947888f02b9f2513ce25e9a624ea45df30584e247329. 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/QZHZ41968960.
Y las Mejores Canciones de Jorge Villamil
Y las Mejores Canciones de Jose A. Morales
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2275811ad86422decbfa019ef07f15bdeed763314a0c0f84dfe8eda60dc10f3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/COFC19564906.
Colección Doble Platino: Garzón Y Collazos Vol. II
Colección Doble Platino: Garzón y Collazos Vol. I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba395591321a956c465d59134ccf9041300f1b11df0d9684885c9c9fa7eb707c. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:34:13Z), 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/QZHZ41932265.
Colección Doble Platino: Garzón Y Collazos Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfdeb68c52e8b77e1088e8d18a717567a47afd974c63d6a9721873748b3af46. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/QZHZ41932289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfdeb68c52e8b77e1088e8d18a717567a47afd974c63d6a9721873748b3af46. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:03:09Z), 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/QZHZ41932289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f1394d6e11c2f718e3f9db5da52fd16f9ae47b13c1704c1afdcfaafec55b00. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:49:02Z), 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/QZHZ41932291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216532b52dd139d75a58aead763b761eab06fcb945e623d0a56afadc22b1b257. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/QZHZ41993183.
Grandes de La Música Colombiana Volume 4
Grandes de La Música Colombiana Volume 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f93d0cdc502ec972b77323a7e94fba959566f8cac61c80a62086396a9cbfe2d. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QMDA61356151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1428cdf141650aae6a58f0ad92e0c43dcee43a3e468755375ce16ae55e371aa1. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QMDA61356155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2710e7456425d54594a58fe3fb59ca5c9aa334660369970d832ccdd28a7f03b6. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/US6R21416038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2b9e62fafe189d5365744d5cf7711c34ea532850ab35d1bbf94d56231e926b. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:02:25Z), 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/ESA031437765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b542e932cb541d20fbfaae0e052e6f61d87a1964ca644e4f8ba52c915d41ab0. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/ESA031437768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cda63bf78dd6b70bce8f8b5a3f4bc11cfdaa9c1aecd7cea6492656829b308b3. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/ESA031437769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe489a5fa9833f428e3e4f458b52583ecf31e8cae18c74d68a533ca8b92952d90. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ES58A2500725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf499c1a28385c3806f8bb840a2e080babb9cb3033973a06e9559e102fa572152. 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/COVM11622933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb27cdd3eab56a3845bba42ddafd2edd31c6acb7904694fe1fbf5dd7f9b0adb. 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/QM4TX1848269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef2de0a45e0546716553755dff430d706172992bf2579800c71cb3360a03848. 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/USR011012816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe533e7c3d409d05063a035c71c45a9e89e80ba285739305e8a780f0f39f23049. 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/QMDA71868097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ffa88634f4afd59a816fe0c3c4d175b20bc179fb6aef6590357a6b6be893cf. 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/QM6P41550903.
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 0xd1c059a35538bd16189fbfaa63c33746d69bf22c31a3518ea7bb62e174d2f857. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QM6P41550905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c4ee65f4cc08534350d1722239a7d52f58767ebcd23da90e5eeafe7ac487c6. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QM6P41550906.
Joyas Musicales de Colombia: Veinte Exitos, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6295ea58467a62d13400ecf7e2bfb25d5ae849af211745ef10719b030d23640. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QMFMF2141470.