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 0x6b558a09030401868b8068b71efda62493cb5ef349d32e29e529519318c185f4. 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/3b1b1e7e-c2dd-4a97-9ae5-d395d8ed7d8e.json and https://artists.proofprofile.net/proofs/artist/3b1b1e7e-c2dd-4a97-9ae5-d395d8ed7d8e.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 0x7ab3421432af8ed685c22393a4a62b4b1b12505a18297fcdce9aafce5d97788c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZES51812142.
Sonido Fania 97 Aniversario De Los Huesos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b1f67c81409e78f816afa089adcb69f0684ccfec0c2e17147931e76dc8ea95. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/QZES51832076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e61a70fbe1f340770529d808e394b083bb7ecf27f45a3e36b61dbcb99bc3a18. 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/QZES51832077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f31c5f881b4dbc466f87a70f9b3ba24e71a77786f7bc2ea3e400530c0547d0. 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/UST8K1892857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30a83bbbb7f00728019d6550e723b45ccb03d4e54e849ba4856f97ab5f0acd1. 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/UST8K1892858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e2978391189a1bacfa91c35cb2ba83e5965964db05bf2da88028dc29f11452. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/UST8K1892862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356285bc5b6078612b5ee05a8c5d4963b099ca80e80dfc49b23420d05d855a8a. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/UST8K1892856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44cb0eecb47b9f984a64bf59db027afbb28ff12e63ee58e9b6bbefb05b4b8270. 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/UST8K1892863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabea9e3c3abffce8b7b6a241b698145e3d31e8e351d0e72823ca56c6e4096f1c. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/UST8K1892861.
Sonido Samurai Aniversario de Los Huesos
Sonido Fania 97 Aniversario de Los Huesos
Sonido Fania 97 Aniversario De Los Huesos 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438eba6340e19e633205b05eb28d71ac134d8c08829f0a982df7cc4618715a88. 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/QZHN92036424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebba06ab2ec64042441d0b66619b233fec89847f13f4e7dd25a0f80e66ae440. 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/QZHNB2148327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb804d9fcb25a036fc334fe0f03a68010a84d075c9e734c649ab830b3e438096d. 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/QZHNB2148328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbbacf2cfbc2c7470461c1c7f7125c1d8ac045fd4eac3e2542cd946d9652c7d. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZHNB2148329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06fdcca8e4bbf969497b21c8d8b4d8561967705ecd7aa581e7ae67d874d4ba95. 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/QZHNB2148330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3eba49bfbeef7f3e5e3a23c231a0b4630edb3900e8a3bd2788dcd400a7b2f1. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:31:30Z), 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/QZHN92036404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb625c599b208c50cae183ef6b33bdbbd664f2fabad83075cb8f673a795a5bba1. 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/QZHNB2148332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d7b8b53cb9cc18b98e9b8bafde4f7b46fe74329042a84907c9b85b8689654b. 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/QZHNB2148333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501269e412cc8b8c334bf4b9bc060d133c30a3aec2e75b2fe84509d9a551af46. 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/QZHN92036428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf560b3d4155846a1bfe1f4e8f22e525689cc5966377aad0ee1a42149a1657c18. 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/QZHN92036426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c65dfdbd0a822cbfcfcff94432e9f9074fe926e2f5ed8515dfb2a6889165859. 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/QZHN92036412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79646d2625b20b4094a624df17034dbd5a863827e2f299bddb1c1cc76a4e40c0. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZHN92036408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517e3518bc886a1ee514aeb4f5c7bdf9e69de542f4203ac6eb06b42780784af4. 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/QZHNB2148335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62bbf9571292a75f3dad1f0fa3fd07d3e8a0a95ce09facd1d06674e35363996. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZHN92036409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a21ae2946b03ae3bf1739b2db174378179da013a45656a6b02dee1a12717c8. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZHN92036411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438eba6340e19e633205b05eb28d71ac134d8c08829f0a982df7cc4618715a88. 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/QZHN92036424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebba06ab2ec64042441d0b66619b233fec89847f13f4e7dd25a0f80e66ae440. 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/QZHNB2148327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb804d9fcb25a036fc334fe0f03a68010a84d075c9e734c649ab830b3e438096d. 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/QZHNB2148328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbbacf2cfbc2c7470461c1c7f7125c1d8ac045fd4eac3e2542cd946d9652c7d. 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/QZHNB2148329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3eba49bfbeef7f3e5e3a23c231a0b4630edb3900e8a3bd2788dcd400a7b2f1. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/QZHN92036404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb625c599b208c50cae183ef6b33bdbbd664f2fabad83075cb8f673a795a5bba1. 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/QZHNB2148332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501269e412cc8b8c334bf4b9bc060d133c30a3aec2e75b2fe84509d9a551af46. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/QZHN92036428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf560b3d4155846a1bfe1f4e8f22e525689cc5966377aad0ee1a42149a1657c18. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZHN92036426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c65dfdbd0a822cbfcfcff94432e9f9074fe926e2f5ed8515dfb2a6889165859. 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/QZHN92036412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517e3518bc886a1ee514aeb4f5c7bdf9e69de542f4203ac6eb06b42780784af4. 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/QZHNB2148335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666ff076a9b10ac9354510434ddc9f38eb6aa29ee926301d208c66e995e509ae. 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/QZHN92052156.
Sonido Samurai Aniversario De Los Huesos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7dffed5f9d090c22092f1af6b16f0e51dad4dd95ceeba39baa8984c27161e3. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:32:47Z), 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/QZWFK2481005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb283fab69d880882dcea58bd8e3a782817f82e2f9e125c3b9adfb9eae78e4a2e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZDQH2534317.