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 0xb9e81d575fd0938e5eaaa880274156b7c485024182fc23bdf389b849f8f27e75. 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/e173543d-7b84-4135-b9ae-3019f381d515.json and https://artists.proofprofile.net/proofs/artist/e173543d-7b84-4135-b9ae-3019f381d515.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Technicolour Boogie - Chus & Ceballos Remix
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 0x9d58e28d4cc16a1d6322fea95336fc56ca4402395ef7d60c4b0f97c30478ac41. 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/ES84B1510252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5b41471b5f0bd307a93d6703ac49fe1741db81c69a89c7ad15a347126039db. 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/GBKQU1938283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f62d109e5e32432d20c96701f43063cc2dff09fcdacb1be1305843dd1827c09. 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/ES94G1916504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a33209841ab6516bd35d3e388014604eb9f30d5698b1087950ceec6c37522e5. 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/ES94G1916506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fdf101d6bdb6f88b97fa425fb1afcbf6c3e4df4b6f8bd3440070d3fe370c457. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/CARH11900092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fdf101d6bdb6f88b97fa425fb1afcbf6c3e4df4b6f8bd3440070d3fe370c457. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CARH11900092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33de71326eff02e6d94eebd423e7a18fbf392467a6026571225d370c5985f3e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBLV62002891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b3f7000be6ba5dfe4d685c537afb3b48ee9aa9210cea67b610890b4147f401. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/CARH11900240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ef4e2ecbcb192b200b26b3538d09d04202a04ebc925295e66d02196389c83e. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/GBKQU2312716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f24fdd9f52598f3f8b5054c04982b53b095b797e6430200415c09aeeedb2f4c. 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/QM6MZ2531363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3d304712b998093b4c5b7326ef2a871aaa88b8fa9e5c2d856a215311f2233d. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QM6MZ2531364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343f6e92a79fb443b85db48a1290b600445ccb699eb8da9d676090c724871f05. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QMPLY2500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cbc0f0a8695551e6a6259761bc5a3151a3f0ba4ea413eb13308c08707ec17e. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/QMPLY2500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa266f01958158dff145e966db0490a32200cf9d0942c382bfad4ecf9c786dc47. 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/QMPLY2500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491f15d82a54cdcf8c1aefe198dbbf474f0e7e396e905bb10a2f7bcd91fc96e0. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/GBJAJ2500875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30c98ad52496e6a2080e39e83c8df3c3cae6e1914bdc51488644c30a90d6a8e. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/GBJAJ2500874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db03d75cc72091057d324460e1015ae319f908d5f15c501251bbfe3877e0832. 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/DEL021602020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2bbae261f94c708bf70f23e3eb8ef53f0b24ea1b7fa36f2404be7fa4580018d. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GBHAD1801353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403dd78526a7d096b6b0f2a1617c838b993f03588428cc55e267be784a554d14. 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/GBEPM1000672.
Jaana - Carlo Lio Meets Kaiserdisco 2010 Edit
Jaana (Carlo Lio Meets Kaiserdisco 2010 Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6771320b004b877f5f898ade5d540830799bbd06db86e09dec16bf56846c7c2d. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/DENC32200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9257ea378d094259a045f95e2c128abfbba983b3e23591395e340fe22ffdd6. 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/GBPVV1501135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177c90f8a9c9ae6925f851862a3ddabb63939dbee8b5df327bf900d7ce21ae76. 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/GBJAJ2000419.