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 0x83ba2e2839910096bf5d2cb03841bea6726e39127c7d8d5706811a53ed5d5cdd. 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/82110ff8-06a4-419f-bf06-23a7f11cfe3b.json and https://artists.proofprofile.net/proofs/artist/82110ff8-06a4-419f-bf06-23a7f11cfe3b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
This Is How It Should Be (feat. Dylan Wright)
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 0x76e6bbcb8bb19e031bcb3df39516d0b2e01d3dc3a643904e9026ae84529859b0. 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/AUZUJ1600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fe4c81acc7632747c1b3bed6cf38861734a2c1dc5371086f1469d0480e35e2. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/AUZUJ1600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefcd2e608db9e08f2c3a3c678e5714161ae0b8a5bdcec8ac76161b02278d727. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/AUZUJ1600019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae61edbba8bb497ec198898c0ba008fd1c50f38b1fb30af68b84f61b85b3a545. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/AUZUJ1600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7dd91be4d38e8feccd2cb3f3f3b625a364e57a46d2bb9515c2ec2e29c9b328. 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/AUZUJ1600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ddaec22562cad396cddf3456d04295b01ed14e2daddc451790576c9a03ab2d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/AUZUJ1600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce36fd4ac3a443b445141aa4080cd75d8e3ca47d3c9c17df931f84375a93250e. 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/AUZUJ2100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac1897041cf7043de921e1e0b60caa8e97e277e6c59a47b62648f48fbda95a3. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/AUZUJ2100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9056f4c6170cec5aa704bf35dd063dba0404f4ecc7641c5874c5ed0d66054c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/AUZUJ2100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aafcd7303289ddee8f1260da8477ec220701e65122e0e483294a9b06436bf6d. 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/AUZUJ2100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0731384ec8ec91a661a4a85ecbbfeb6b0970f2074cd8b47ac5ba5680d79677. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:06:04Z), 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/AUZUJ1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc21fa0692551b9582cd3fa1a860b4fa6afc8e9e215c3ca0eb3362fb50673a5. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:58:28Z), 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/AUZUJ2300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d460c7c0b4259a92583d3e396aa823503d11cc7c4615795daf0df881b528c13. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/AUZUJ2400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4c7518a722f30e30e2fbd6f6978513fb6179f451a30b3b24b2ba0a169d19a4. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:04:37Z), 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/AUZUJ2400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc11fe0bd621a21c9d9f176f61bb360f4be05f802b51ffe37baef44ad5091ce2. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/AUZUJ2400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc11fe0bd621a21c9d9f176f61bb360f4be05f802b51ffe37baef44ad5091ce2. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/AUZUJ2400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d460c7c0b4259a92583d3e396aa823503d11cc7c4615795daf0df881b528c13. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/AUZUJ2400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5dad47c4c8143f3bf9a5b2039bcf8b4bd1b45995e89dc7e427b9ce10fe2b0a. 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/AUZUJ2400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea4e35eabc764426879c4c7c0e3148612aac6cf051780ee868557d94aaee036. 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/AUZUJ2400044.