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 0x4eda50071caf9a8f8e7965e5828a38767d6f10872614fd3b2dafbe3f4cace60d. 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/a9fc4e47-af24-4f0c-b0ca-c5737e820a8e.json and https://artists.proofprofile.net/proofs/artist/a9fc4e47-af24-4f0c-b0ca-c5737e820a8e.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 0x602b703810496dba90754fc3315be7b4c87fd85c4782b33264ab44f792ca946d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZFZ22073110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8f3b0f515c7c9e980e07377c0c3fc0c3a535ed3d620d1f0b25a1ccef5edf2d. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZDA52008247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a3c5d101ae729ac66c66eded3b273fefa3ca65104e28535759f5974f4ed1af. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QZDA52008251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073381757151730a16e673b19f08e07d2c54552fcb633303f27e5f8eab1afa55. 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/QZDA52008252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc49a33e0149e6d86dd53596e6d0748ced8bd919ff25bdddc3df61058aaae6e3. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZDA52008253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e5f64dace9c46a7657000cd9c37efb5133d02540578cf2e5206d5cb9dd8dbb. 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/QZES72010051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f879a1949d00e60be389bdcdb4b86d5c4d615407ecf1ad0cddee3c4f3ab6736. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZES72010056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39ef7bd4806f99f57b062e696c7261ca4496c5ae8a6d7484d62ac9140bcbcf8. 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/QZES72010057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed3b0304f4fe0c158d6a3ed1d72e20840befe2dad6d449d9ad2bac64995ea7c. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:43:10Z), 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/QZES72010060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf41acd9c5a0dd11cee59e37debe0d0d3d3071db442122873ccdf9a39b653a55. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZES82025745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041accc39e9fe2f709ed29b423b25925f8959a1f0465ed830109738d6b4c9a0a. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/QZES82025746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f64ca15688297a4cac5f60490858f0af31aff2914b00c2eb60e854680bb495. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZES82025749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c23edd6e93d2d21d5b7df6a0eb5781fa39bb3f7c47fdfee978b9d412377245. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZES82025751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd2bef256732a4a353b77ff0652866e98395f1c8e02d8cf0727e6d2bf457cc8. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:29:08Z), 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/QZES82025752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c708781fa6d60ff7dca7998b3c62f323d681b89412afffe959ed8d4a40fc46. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZES82025753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5d862a13a673f46fd6af62206018452a18c9c66dbde27e0e529a11233e8494. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZDA62179339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d42dc9975947995d7a0fc022b70617d967c5393ff73c52ea1afce77311f945. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZNWQ2278874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddf17b46c0b8bce3c799f85608978ef4a24bf10269708cb44a79bb3d0bc44ef. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZNWQ2278875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09480232cb806c8f6600e20496e546da575b7648936468b7ff1820d75e8a65fb. 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/QZNWQ2278880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476e249fb1f1de5c9bdb25ab34ddf0ce9c1ef723058327b775946c1336c7b3b8. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:36:14Z), 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/QZNWQ2278882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19afcb4b32d2fdf72cc69dc949ab8c7a9b1c732448ec1630a77417e0fa30717a. 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/QZMEN2246504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68efbf28a71d9a0afa9bbbe10a3edbc51ce772641c9aaa59e375b14c1206618c. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/QZMEN2246508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223a95c9b82e88765139ebb7403731f072f596e536a94e2e90110f5841d85bd2. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:20:56Z), 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/QZMEN2246510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9efb554385244d567adaf57484566fb3ff52a2b4bd5e9da011cfe711940494a9. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:03:11Z), 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/QZMEN2246511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43192c2db39677f643e81a1bbfa70cef7a596d769a6dc19775b1eb1b02054214. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZMEN2246514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0efb81ed58139371b2751923d933466ddf0c07f43a8e5dae304d6880c2840b2c. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/QZNWS2243799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12dbb0ae3ae21042077694296492159811ddede7015e733f70c45ce7e706bfd6. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:40:08Z), 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/QZNWS2243802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a78a4f94b3558a9cea7c19172546aa404e8e18da2197b8f3ac71df00fd9ab3d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNWS2243803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260145c61b99070baba3829b1246d892553394055d0ddad0667b861db4a4102d. 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/QZNWS2243807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aebdbf06c0ace6fb47cdab1e82fef76ac9c9260f31d32c0b68a90a381e0e68d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZNWW2231045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27849bb5d5b39f4113621b5662811f754bc5338707dd5e05333ec58e5bb2e0c. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZNWW2231046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62afcca40378ec6b2206d7ceedda993681466f0eb74871e5f8a9a2193d7a7c8f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:28:37Z), 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/QZNWW2231048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1ffe216761dc043a9029771abae440bba538376e94db38ef9aa784dc06d99c. 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/QZNWW2231050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0396210f2c9a27560ad1e722fc3a1a77ddb6cdc45d0b137ff594c3ac8b98d2c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:36:51Z), 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/QZNWW2231052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af6b897af55a605347ca0ee92778dcaad5e17a268cb8d3ad1633610fc2e8240. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:27:28Z), 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/QZNWW2231053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd93f5bfddcb11bcd2173d90d671376a2b762fc75769be315e602d486c6f402e. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZRP42212674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc103bc71995b10ffc5310644fe2398e1a1c5d00434f4654e4149adbade5d0d7f. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZRP42212676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2754f01fb6b0f504589d4642109e4c0d1e64ff619dd0eba1be265253c38717. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:14:34Z), 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/QZRP42212679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca629e75b0964c13bd2ed6cb87c41c90c5312b38b17287a593060b91b82c6944. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/QZRP42212680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d007de64f6d4321f9a044d5ea3998ab2c12fd253142e86485ab00c863452bc7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZRP42212684.
Homenaje A Jesus Eucaristia Rey Del Universo