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 0xdbb4461be50542ee879e4a505849b538ff831636cf67a15ed1ef0a0a74b708e5. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f787c50-f1af-4895-ac04-5806de660838.json and https://artists.proofprofile.net/proofs/artist/9f787c50-f1af-4895-ac04-5806de660838.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Det är en konst att stå ut med sig själv
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 0xa35c5bb67a7b6197af5ea01742d0878f482605dd9ac5c0d70d0d3f6e8f34d8e8. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QT3EY2439639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f82856cc0fb10d78bce225adbda0121fbd9d0c697b063a23881c03f39c915b. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QT3EY2437790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9400ca1984e20878b1c981b6825b7894d77b4f904bc0440b00e38b2ec6b5c3. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:47:23Z), 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/QZFYZ2582645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35c5bb67a7b6197af5ea01742d0878f482605dd9ac5c0d70d0d3f6e8f34d8e8. Chain 2 (Bitcoin): anchored in block 957703 (2026-07-12T12:26:40Z), 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/QT3EY2439639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf80bcdd91e86712a6b2529ce49e8f39db75ec30a890da7b78f0a54744991030. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QT3EY2439644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a3679bdaec23aeec389b714c7ce1ca868b6ffafd806c0ca15df6675875334d. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QT3EY2439645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8670b41f6f8868093f266484838aff5154f52cfcd4c75f3aafb94b9c472e195. 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/QT3EY2439646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d4b53a62c52558d1ca550c38915cb32fcc887f86e4782c12e60e7b5885bd4c. 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/QT3EY2439647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f82856cc0fb10d78bce225adbda0121fbd9d0c697b063a23881c03f39c915b. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QT3EY2437790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1bbc443038789d1cc6597ca26af276172ef2ff06257791bf84fbbceb0c52d1. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:46:06Z), 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/QT3EY2439649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2170cee807e7c2c3f8681ba9c22e61875c54b9989610219d4b64fbd14519bce. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QT3EY2439651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5527993e639af84dc298960217896cc4053e6f3b5e9a9cd3f26443908e31202f. 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/QZTAY2533529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2d9cf99dbd2ac2c8cf9a04a87fbce86e50f92a854e073041f54ab57b8e04e2. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZTAY2533536.