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 0xd958fe146bd940687ac2cdcb2b2227cd4361e56e7ab2d7922a066c5bd6fab8e2. 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/c6df0ee4-abfe-4a4a-8759-7ed22169449a.json and https://artists.proofprofile.net/proofs/artist/c6df0ee4-abfe-4a4a-8759-7ed22169449a.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 0x2c1fc0a73caa65120809bf32bb2326fa17d380ee690e74513aa2a8b6c8ea84ec. 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/NLZ541700344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3eb353c1f834c7ef4e169ebdcade2fb1d1680a876296bb3b66f0a0a01b53b7d. 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/NLZ541801504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6997f8fcc64d204466a85e27635c966559f9779cc013761deb553d0b23f5f1. 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/NLZ542000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44195985f65fd6e139532312dfffed65875e08ca6e0462b5860ac23bc14d1a2. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/GB8KE2055000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc217a421c0803fa90757a0df4fef9155e724c6ed0f15780dfd271770abe56f14. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBPWR2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb6510404343d501e984c5c05ab74a2a9abd79da73c9c02dc4c28018b1ef7a2. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/NLRD52264148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1312c56b2749229afeec02ed3f4a38d753e58cf70764278347f33cada05662e4. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:50:04Z), 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/NLRD52264149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5c536e970bd7d41ecf37b2c1ccac8c0421182ba6d036a33942b2b6aa6e933a. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBPWR2300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54567e9ac042032e82ab39f555516cf5e5f45ad5525586b5a07455f270635504. 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/CA5KR2412390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55aa2aee3c989fd408295868a9ec15d5b9ac2b9fa974ede1051e6f2bcfad6369. 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/CA5KR2430267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3a107392939b8375d62dd584eb3fb832ac62afadc042467286dce0c26401b2. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/GBPWR2400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ac3f6fdd125eb07801e73edd3a7ae948d32c87a489bbe8bd634d38eec8e72b. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/GBPWR2400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9294c3282cd43d0266bb81b6efcecaa276a3ae38f9c7facc5e079d5732154d. 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/CA5KR2440551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0586efe3806a3b5b9cb418dec793e8e551a7521f7b8c47f405e454556e62c06a. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:41:31Z), 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/CA5KR2491034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2f24660aa4d1c45b915831cd4fbf9b65d89771ee171b7f5597fa6e6226bbd8. 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/CA5KR2495084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e2b4473da0df4f45e3cd92e2c0a199048366c59b09a1fc99cf336c5a7572d5. 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/CA5KR2503364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de0da2844a8242f4f6f40f944e88df3ee350c1bbda04fd69d6a51040a87a346. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:35:00Z), 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/CA5KR2503834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00755d8a6e5342b81fc9712d6c65c7f24a3a91b47f459aa361f59f043998844. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/CA5KR2505394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979167f524e044a645f75ccef55d507fd2126bfd13ddcdab16c3bfff392856dc. 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/GB8KE2156836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa89763af611ba349aded24815e72b8e75ffb3805f2fad500f5feb1432609ea2. 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/NLZ542100299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee126dd31ed59f9322d40c1b28feb2a226360cb2eb37f8db6e10014a6389a1e2. 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/GB8KE2050484.
Everything I Wanted - (Dux n Bass Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a81b2ca4c241e331d9c948623659264a44e41cc3466bbf5c92205042d87086. 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/DEXO72048554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62c7f62b309f7af62415c0cde088b0d8012b6fd1f936172a5439e8f984246c0. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/CA5KR2296407.
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 0x50e10ab36ddfb41acf6de1b81ce7b1f229cd6e375d5a0b20ab13b8f35ba0aa6b. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLZ7T1900010.