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 0x25ce4fe3031d6ad16e3befd5be35aa7bc8561aa703eb840848e81572bf6e12da. 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/2f0c543b-57c6-4e90-b58a-02defd1ed063.json and https://artists.proofprofile.net/proofs/artist/2f0c543b-57c6-4e90-b58a-02defd1ed063.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 0x0ede3d4689a257278bec0fd1f66f31d339a6f6514ff3a33cf0608c584c736627. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GB23W1700025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01b4584b6e9f0742b5f9e8fcba2fe7bd1c80075ecc0defa490a54be117d07a6. 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/GB23W1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75b947bd8c7f39b391fa96fe6640e26ac2873a1e7ac0559a0a21a96cdda8d4c. 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/GB23W1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d8c1de2282a1422a76cfb734b7f510f0bffe2e224825ab382288b5ea6e265c. 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/TCADU1833543.
(Your Love Keeps Lifting Me) Higher & Higher
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeae44d02280bc167cc25313046fd4b7daf6305d4c3fba1a5c8c41acbbf00ebe. 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/GBKPL1977614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534efd9a710f3f209a8b4ec96f53d3765d228097988c10448dd14a11a51bec21. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/GBKPL2206320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c7ef93d1c226ce186cf9f668fa266b5c99c195a0bee4c1cdc5c095cb46ad58. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/QM6P42312850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54f17fd9586a2d22c489cbbba313616b04853a9795ccd1c747c98bb9be651b4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QMBZ92315949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233fe0d50ed91b1fbd9a46a249fc75763dcbf23a26fe541fc20f0e3477df9f5c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:13:26Z), 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/QMBZ92397607.
Live in Manchester (Live In Manchester 2023)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0a95b8be989d8a5f1aad74098cf7982d67dc92f6e1b38f304de3b12ebb295c. 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/FRX452430896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02342dc595b1f8412aa45f79d7fd4a8c1209666c34da3e249ba472c24c0a858d. 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/FRX872422425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a5432d0c66b797a4fcc04d031bffdd7e81273ea9c14a6221e467572ceaca47. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:43:20Z), 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/TCAHZ2467910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9956a131ae18762a94bbf005cec836144f79fa5eae7e278c9a6e5fcc0229cb1d. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/FRX872432201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c020da801124c81d21eb80727c16287cca4bbb0e34b5be5d431a0378eaa443b. 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/FRX872432202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5f159ef78b61c0bcdab8f4af4217291f7a6886825ffd55194be7a403892698. 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/FRX872432203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bcf5f0cc0be2f30925f592246f5dc939d5efe8d9b9ec33c9146f8303c7e740b. 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/FRX872432204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3d3f67d0e98c37819065f9a5d6ba212bc55511ac5be9f766937b1ffa3e4c98. 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/QZZ762468212.