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 0x65514cb5709e3785500aecc40b741d5352c6329054f36fbdae74a7049b65f182. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/649ce997-a6c9-4a13-964b-816d80932828.json and https://artists.proofprofile.net/proofs/artist/649ce997-a6c9-4a13-964b-816d80932828.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
(Your Love Keeps Lifting Me) Higher and Higher
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 0xa3e40eafa3ef89ee3cc20bc4f118541d362c1a22abf392c25d02f5ad1b61cc13. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/GBPS81514491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c525b078bfc816b7d0a5509954802abafbbd38bb6b43b98cb39bd2fbf8f03e. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/GBPS81501166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584eacd4e751759c253671b561ec870492380ce25c70b0f9bc3b530dcd12e8e1. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GBPS81519817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe568ba90b4919f5c6d11ecd82773452421871af0325050dabed33419fef563f3. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/GBPS81514686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e80fc50f77b81c06f7db0de6ee6945c07bba0c4890a017ef07302f54e06540. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBPS81513737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10026985edfb6d3483a32719c155cc4367077e535313dfbafb20d7d6292a27e8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBPS81527516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04bc1bfe531b2df71bdfd71ddae3166373f18ff59906f38a5ef9f1e4dfe414b. 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/GBPS81528171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1c1e3988f4a8d27e4a592238f6368f54e8ca6d63ebf1e3107373b24383d7d4. 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/GBPS81518236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633d0923a8e8f7bc4453e08607c5fee6fbabb64fe7ed8398f76af5aaabbf05b0. 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/GBPS81525966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe695a1ac28c85186060d9e00103119fe3744530828477f04470fdd2fccdfb8de. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/GBPS81513738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49dadf1bf506cb32a0c1e8dc8713ee9652c24426aae26c28da62a0d0c996f4a. 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/GBPS81527726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742939ca687ef3022e6294951c674ac3320e700ec1646ab876bc54614b7a80c3. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:41:14Z), 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/GBPS81519958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3494e90dc916c346174d9a53c6f36d4ae92e8a3c24c4aac5e49489f8959514. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:44:18Z), 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/GBPS81520047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b06e57f15b57e05344fb9511397cc58a4f566bc2425fc8c8938e3acf4eb720. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/GBPS81528815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96db20f34a7dc3a8ad7160736511f8e64da9a57e95abad70041706fabc4344de. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBPS81527628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cd54bff59cdd45ecb189f41d72b5e0508330869b33216c91ffd176778c99b3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBPS81501171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58442652b8d9df68630dfd28050c1889f89ffbf865c05e6addc4effcf5f8afe0. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GBPS81520035.