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 0xdf85cd6857ebb263876500fa87c8965385da657d04d8dba92d093d42b877be64. 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/0843b49b-24b8-4d13-8ed6-4d6511d78015.json and https://artists.proofprofile.net/proofs/artist/0843b49b-24b8-4d13-8ed6-4d6511d78015.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 0xcea1b626b0c4a60e358f9b2034d0086a9a0a9eba39018fd3556c1c7a223a63e4. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZGLM1962164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc455bba1f2c593e2dea33cc689362320ff0e6f7772b860fa69263f535ebda46. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZNJW2358907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fe2c32025dbd1de609e89fe280b04d0babd34225bc21bad90b3ef9812c9449. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZNJY2317948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c07682a213e84f1031a74e688fbdd3cd0b7384091a8c4e0a009a07444c5613. 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/USA4N2370010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d0c5d1e599f8821abc8644a80d3436bada70f49f7947c022d7462dd24c0692. 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/QZNJY2475406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6be899d0634648518d75f93a7d37ceaaf0c96a734a9ab233e5c88f3c5a0c2c. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/QZGLM2598402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5391c6d81d8530f8bfac7874c373276a793fcfc91470dd475eea6c38ca74b1c8. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZGLM2598403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab50dd02ccab63ab5c017e614700fbcd69631f827d2a628bf2f9f710caa056b. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/QZGLM2598404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997b3a044ebcbb9a384d6b0a7d995d1d9b451976f54e49bd5825899933a00ec3. 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/QZGLM2598405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0c0451e0de57cdfa96120042eb1f01b337ae7a8b6bf9f1a48f33576e09f243. 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/QZMZ92504780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ce1f7a8f30318cba7bf9bc109f1a2d12c2710050e46c9a8249f8346855a1bb. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZMZ92504782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4a4306756a2e129e323ac557600a3a242f9e2cb96d0cf87a8bed494ce4f1a6. 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/QZMZ92504783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af59483de4dab0d9e381df6deaa3347d9f9a37297011c2a654db1c15d75ecfb. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USA4N2470004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad11c52334cdfeef5b27172e994e729fe3b646c48583ac4830fbf3741b1f7725. 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/USA4N2470001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c42cf5419ece34458aaa19b9387548f297df4a638674b344363f164870eb7ff. 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/USA4N2470002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3216cacd9de038964ce7027f170e0c29571ba7d56b861d142ccb57097c5be4. 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/USA4N2470003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c948726ca837b9deb414fbe8c1ebbbfd34549044132366a456ac05bd7b51cd. 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/USA4N2470005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba94670bd3a5879d45091d95fb7316afa3eff620f00a03a1f71843c3d5ae6bf. 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/USA4N2470006.
Vigilia Buen Pastor 2023 Argentina (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a451b6b5f0c76af7b2c1f2619d98b321daf08d7d3ae5cfa048dc5aca7c690e. 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/USA4N2370012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7f84f18ecb59f66b6f1d12a11645c78bf5b247513e87764658c8379c08ff15. 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/USA4N2370013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68093f598e2914cfeab8b29e28be9d02077fc8b2814b14f86cd48c25287e7a6. 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/USA4N2370014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9f8dd86ea7ee16c116c880e6ee7f903881732f3f6e0a223454233bf0ca2015. 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/USA4N2370015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada0491e4e86195fd814d62e587d6c5170c171ce6f57fdb7628af14546c63f1e. 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/USA4N2370011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516ab2f736e24e774b59fc5a8e037c649c3c97eb7604e60ded3f662c92a93d62. 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/USA4N2370016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c42cf5419ece34458aaa19b9387548f297df4a638674b344363f164870eb7ff. 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/USA4N2470002.
Popurrí (Vienen Con Alegría, Juntos Como Hermanos, Alabaré) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe110848a8fc83e3a4ba5f589e53e9fb0cfc45acc90e0aae04fb0a1fd40c1d24d. 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/USA4N2370029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5becb4fd614380c3b0e694d5c9d9598764963caf578d091d59ee5cfdcbc492ea. 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/USA4N2370023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49b31fab56db7d9035521e94dcebaae19ce89c3f432e2d4e5342c855957d7b8. 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/USA4N2370043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad11c52334cdfeef5b27172e994e729fe3b646c48583ac4830fbf3741b1f7725. 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/USA4N2470001.