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 0x34fca23e8cd74475644763088b0034873ff872d6e7afe6d9cdbcae46a85854e8. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/537d2833-c63f-4a57-9940-84e80b832b08.json and https://artists.proofprofile.net/proofs/artist/537d2833-c63f-4a57-9940-84e80b832b08.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Joyful Joyful - Instrumental Prelude/Live
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 0x95b1a8480cd4af15fc21ee30a5316cb071a0203c25ef5d4480c9bd54a501c873. 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/QMQ3X1500995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fd9a4df2d736a9950c2d00514bded1109eb99640bead0ddb9f6fc281e63db9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMQ3X1500996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b9a0d2037f677358058f67d08d804f4aeabc19609dac39e0684e93f2b2702e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMQ3X1500999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054355fe125ccb3ed5832757045d5c2965db0cfd1236bc24d2e83932d9b9311d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMQ3X1501000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d011a09781ac4dd4acf1a02a39f41764d4c3b04bcff4740c74a5ffec9a0117. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMQ3X1501002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3f22909f31c9483f2f3e8d60067f00d1d2d080b41128857332d907309810b0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMQ3X1501006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda49d5bab835072aa6ae3ef9a7204245f5527f08818ca1f6ae777b56ef99a847. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMQ3X1501007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f80d5a9f35d586f600d3357b8762eef832558a4dd14674e47fb37936007210. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMQ3X1501008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac75ac5ff449de512b9399101e9d130cb30aff4d9ed5988cb407f714cd62018. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QMQ3X1501005.
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
All Creatures Of Our God And King - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39655e632d001faff3409fd9dcdc3dc7e3b888138eb38a0bb19e1eacde1b3af. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMQ3X1500997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0c15e8e1808088e79b961055b345105518a86baa6ce51dcbde5bf3c10f403a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMQ3X1500998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed04020b53b6346af7b6b80da9a5eaefa714d377708ec78e2864bf51637da13. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QMQ3X1501001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd0d8e403ee24ee6eb809bf0d181dc895e97dee8af51dee52ae3d0bcce83b29. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QMQ3X1501003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990a0d17bd0df350cbe016c806d78344f8a2d03308e416cbfc2f28126087a474. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/QMQ3X1501004.