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 0x31bf0a05323f01c32554ddf11beb4e63f8e05036d22253e31517db4585534b9e. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9068bef-b3df-4e31-806b-d8c636c1511a.json and https://artists.proofprofile.net/proofs/artist/c9068bef-b3df-4e31-806b-d8c636c1511a.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 0xb587715f954c7f288033ecff6dc4791108dc22ca82a74d32e8b03ed67df0283a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:51:50Z), 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/ITB552116459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b8a4bc9bbd439540ea810877c087db06af7c3ae5d9e568db7fc1d00e618619. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLG3N2300053.
Nothing But... Tech House Selections, Vol. 26
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01acb8c1847180865a459611e8fb52304db50abb37f089da5adcd8aefa4a7257. 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/DEPI82500199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b241ee8d3415c88675406c7d5ead0d8d82e1bfc99e3b1b28d9ecf48c213560. 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/ITTL52410161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd4fbb6fa0c787074a03febe3af2981117c99c142484f82457582cac352dd8b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA2P2409096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bb342bdd193d3d60897dd65a1950317e7424bebf21957c1d7042efa8c977f1. 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/NLG3N2300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cfedd1307c34dcdd5fbc50a818bffcd8d5b90cb9906a080ae1673349198e97. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DGA092350392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e413c62c0c54e534d66e37cd883cf4a4781c5d8c804fd7d70e2f851d1e16fa6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLT2H2200425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b61dd19a94c5307543e0671f12fa8a8a41ce4698d73e8de0a9e61ad6124e7b8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITDF62219593.
Yo Contigo, Tú Conmigo (Mazay Remix / The Gong Gong Song)
Yo Contigo, Tú Conmigo - Mazay Remix / The Gong Gong Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51561743b285073493d33a8700897d0f7112f8e03f29ca819ab64399bc2d75e9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES5701700865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa846dc7fe7868c4e5306c9d54b2866b49c02670186e06a27b42c5ae1459c1879. 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/FR10S1995055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a44d154cd7563f128548c94a249ad9f7b82f8368cd95296714cfc9d827113d2. 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/ITUM72101752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8401f72659bdeca367da8b7ac27b3e4749b085d4655b7c25217f34e49ab0da72. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITUM72101755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24f7511fa39a4109f3f0e3fad3874887a55e961bc13514153f5e325f1db1bbc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITUM72101751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26bcb1960a85ab50410416e4aabe78a3ec71efa7302205197389e451722744e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITUM72101742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb6028ee8cb7c29e8f0c029717ed28d588fda7b5ee32274cba0801ccc3fe647. 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/ITUM72101746.
Il Boom - Nicola Pigini & Leonardo Carioti Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e3d56363153202fb4f6102867473a39239186c5d0a28ed0a1cf10514a00fed. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITUM72101753.
Il Boom - Ackeejuice Rockers & Mudimbi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa649d860bc57047c3dc7964b340eb4ecf21dfb3482472048ccd778fd60c37132. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ITUM72101654.
Il Boom - Benny Benassi & Riccardo Marchi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6a360e3cbe2c6238301ffed94cfe00d883d570465ec0e1696c2a37241b00c8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITUM72101655.
Il Boom - Rivaz & Botteghi & Frankie HI-NRG MC Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8b2c1ab206392731fbcd6d78bdbfa8906ad447e71d005d0af8a883b1be2aea. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITUM72101661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14dc6b14d63ad138a1eda32e9d2eb79b4be0916fcfbca096fadaaa265e21ed84. 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/ITG411900116.
Acquagym (feat. Rkomi) - Jude & Frank Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d834e89c0c84fa61036978ca1128273f32482792beb15f90c76a587d0306b9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:16:21Z), 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/ITG411900136.
Acquagym (feat. Rkomi) - Mazay & Gamuel Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61748d64d6f138bc1967094a5918b95af79db39911347ec9954409b5ee7a289. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ITG411900133.
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 0xbfcc597db1a43f89918b40da761f03492b7aec8ff8af9978ecced429a0029ba6. 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/CH6542128550.