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 0xb2f4ced5212b1f9fd62903c7c27b6abed153ce0cecd0dc6617fcc790870cc232. 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/45dfb591-501c-4003-8c21-404852006130.json and https://artists.proofprofile.net/proofs/artist/45dfb591-501c-4003-8c21-404852006130.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 0x7a4045be94227bc72cad8c1191fc25f0b4d278ec06c2b38381a84b8e2d8eb3be. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:52:05Z), 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/GBBKS9100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6d4419c407907785d1ce894b20a7b327afb032a734833043f54a1de98f0618. 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/GB1419200090.
On a Ragga Tip '97 - Goodfello's Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1440de2f9aa464205d1d3e16e205aad9c25620c5632a0c2a50a120e88a416de6. 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/GBBKS9600025.
On a Ragga Tip '97 - Force & Styles Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fd53f958729a1ac678d979d4455fb0f5425398bbc4916e40c66c90dd07a7e3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBBKS9600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b30c0de4ab2142dbb18db14a5b7187d994754e0d32104f749e38ae566ef32a. 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/GBBKS9600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175d549b3f24ba7ba20483196be588fadb36d91723fc203130f46c52c717aa3b. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:35:16Z), 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/GBKQU1568395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793d092a810e999f23b803372447e291764037273a5fd23ea24ab4b46c31b984. 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/UK84Q1800158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3292ac72ebfb8049772e44d96ac110bad6b97f80620fce3355e5cb14c59285. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/GBKQU1996120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2846c3cc9db9c102477b80d5999856096e373fd77e50af5216ca84e92a4b9b65. 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/GBBKS9100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3ac7be40e2ce7ae2076e310d4b9e19c56f5879e5d83ca5485fe8d86387dc58. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/UK84Q1800154.