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 0x0f26581f3ed872d12bdf65ab903764d640e8fc206107e3f69250e8ec7d85391f. 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/3e7012e1-182c-4a02-9272-cb0c7b128c05.json and https://artists.proofprofile.net/proofs/artist/3e7012e1-182c-4a02-9272-cb0c7b128c05.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 0xd34c283043f28208fb80bce70e3033b3932bb2407124af244ebd8de16cae400d. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/USHM21262438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac065b9999d683f864dd148368341efe302846238fa3df3c6b2480ccb51ce712. 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/USHM21262443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6aad0932ac9b24a121c5c4cf1741021364837f65bac043b909c6fdb65f7e37. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USHM21262444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37cfbad5e4d894da09d39f7d4a3a487752c99525e8a600ef95c6df9dcf8d555. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/USHM21262446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca1688e967ec29846eb64d4f86237a8b6ae35e121cc455fb5402cf054470255. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USHM90785589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efd4c3aaf209fe3cd6f40134667d5c067ae0bb0b8a3b2905df174e702c2290c. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USHM90785590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a8f48a7bb6fcc453c32a526af4da32803cf08212e49b71bb9c23ae881ffb09. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USHM90785591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07688935e2c3b08f9d8c6cf515ebeba49cf2a012cf0afe06160664fc6ab3e052. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USHM90785592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4b67794d75370f0c160d37ef4ba743ac0fb086af708ff42bf7d38608b18ab0. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/USHM90785593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7e006abf594a9d8bf88a9fa61d3fdc21fa8b83af687f0a26ac331276ab5f13. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USHM90785594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1775a99f4be6ec8b0ef048c3549324786c1cdd3aba4784fd6d2d8394315c5036. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/USHM21233031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5086ed43e4100b6731f8472130a5c8764b32f5bdf191c442f147247db7f95e8. 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/USHM21233032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a49ee2f9c3c62cca6c2fda2a6c1030eb3f62ddd22f52c80591cacb92f136ac4. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/USHM21011282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc744a19d6b4cba96bcc9afedc3a5ae094e21352af908a3a5066616dcdad0503. 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/USDY41645894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c086741f870ecc79c4aab914fbcd3b2016a898375f3ae977460202baa2589eb. 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/US3DF1986485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5def7dea2c94591eeeeb89cb21228e9350e08aab479913f887d777faa53a64f3. 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/USANG2002683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5008107eda09cba935667bd150087cf8a941ba1d390295e14eb5e19d1a42a924. 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/USANG2072020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f999572b266da569c69d03668dec13ad315af51f59a877a4b7ac77c338a32c. 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/USANG2128392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10c87635c932f70007287902f0849a5cb0438c695e202308e6f8650d2c56415. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T04:08:24Z), 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/US3DF2220685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb2709bcba9a3dd711ab4808fdea9eb58be441e9a8072c8e2c502c21dec8a80. 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/US3DF2271831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bbdcec79c35806375c22917eb94a7b7637136e7133e5e7f0e55c3807011455a. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/US3DF2271833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a28504672d99b66c1c44a66ad7b8552c08abe7c56814ebc88a67ab290299ed. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/US3DF2271838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982c87f84b0c2670fdffa25ce5b1244cdc7552cd1dc3c5f64577178f9042114e. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/US3DF2271837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c019bdc1e5eb7831b63ea13dbc4cd0333c9dadd9646bd49279bcf5091828334. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/US3DF2271832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fa9021834c8c230bbcb375c87ec9024da7747318838029d6d34119174c3307. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/US3DF2271829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11cf3de5cac832a9028264ed2754f9e5f7625f7f7f6b91ad98d20490c9d06d4b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US3DF2271836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b34c2306374406a4752cca81d12cc818b96b79efd26c471c147c5ff7826191d. 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/US3DF2451590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17e4222e5a38ef34f10e8de7abe28ba64345c25e640150be2f34364e534d043. 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/USANG2418020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0868afa0c9311dca486c78501a54e909e7eb424047aaa6564ebf82c7f746fcc0. 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/US3DF2550120.
Retiro De Mujeres: En Espíritu Y En Verdad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4719834b406f933212df27bc26664549e63a1ed51d075cbb60b1d25d009723d9. 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/ARRDV1101012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1188e5d09493d24dc14ddde0bebdd5da215b1375afccd8a475b7cdecd92dce14. 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/ARRDV1101011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aff567ccc6ec8a3a239442b9f793e8b5e05a48e5673916d89ece72c3bb1c121. 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/QM7282351494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2241dec3d2014a0b9a05365453439a14dcdb76397d7bb374ac8098240f96e6a7. 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/QM7281978573.
Lo Que Pasó En La Cruz (feat. Nancy Amancio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf600f0ac58d2983bc559b081d9e79b8f59c8c6c1cc380677cf19a5f97b069dc2. 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/TCABY1482690.
Música Cristiana De Alabanza Y Adoración 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e4b2ff723c517d42acf83e99df1eac73d79dad634d4a170b8cd22d0f0d5182. 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/QM4TW1502577.