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 0xc3d3a61d90831359d63dbc7a5be7975a2d2e111f9d5735fe81960aaec14d566f. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c89114f-a413-4d4f-b7a2-1679617bf904.json and https://artists.proofprofile.net/proofs/artist/3c89114f-a413-4d4f-b7a2-1679617bf904.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ghana Worship Medley Songs of Gratitude and ThanksGiving
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 0x712e9938bbd683425a43f70ea6f9457afda75f8c6a6fa8d2b5233a6e9bb092b0. 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/QZWFK2370812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccacfd9211de7c36e479bf507af14fad8f03f40637fbbab927b39f9198b08ea. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZWFJ2453540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644f38c1513cc4e0fb7fe71e7f2b2b9f8dbb3e55163207c40a3fb6336b20e218. 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/QZWFV2433178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e15152db80e35a8549872a1e973c514430b64ff4e77372608c651092508970f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWFV2433179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93301d7b438eba464d6bf4125d91ab984c11a417b3ea9242230aa734c8f020d1. 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/QZWFV2433180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4df02aca2a797426d5f48b6550c4e9dc5bf6e4f27f6a5967d3023898d22d200. 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/QZWFV2433181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bcef8f9e45fe789eaa04b295e79d6f61d259b4e628daacb2b8af32e57e4138. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QZWFV2433183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fd6a9f0cfa6551a6ae052938e4df3c6fd76dfd0b8dcdf7200ba10a9c780a15. 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/QZWFV2433184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccacfd9211de7c36e479bf507af14fad8f03f40637fbbab927b39f9198b08ea. 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/QZWFJ2453540.