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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc090284846fc324da3274f4adb942c19bcbde3f73f11598887f4e099da4acf1. 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/c7842114-6354-4777-99fa-980ab0a9e264.json and https://artists.proofprofile.net/proofs/artist/c7842114-6354-4777-99fa-980ab0a9e264.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a9065fc496b73a4e817cd233ba0b6bdcb32b9fcd3227d367337926fb091217. 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/GX8KD2221721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6d063f7098994f2e4231f055dd97d02948d381f4083d33a45b6677a5990f2e. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GX8KD2244837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5575c099536d9aa22eb8f6311da743bd8786c31b0e5c52d4d1b42e1f5316a6ea. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/GX8KD2244842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d23bd0148eed78d640f52e0d75f9ce2bd3be26829f9a917e21c8fdade59d04. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZTB92266748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153cec9561bc7e8d24f9daa10b157ee7bf6132c56805b86cf9ff31f8c26dfae4. 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/QZTB92266749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0b5bb03abb9644d199ef7210baeb9c199cbcb0b746140c0b2347db7e34f8f8. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/QZTB92266752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225eef487485b4a6764dddc6f84e7fbc1eff8c40b587131799d314815ece851a. 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/QZTB92266756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c2645a21c4d470114da490f72b2fe7b3b5be6a40edea39430fc11834dff334. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZDA62381677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82024fe091b1d66ce48c5e2a2265ef5743bdd2b2fda001f98fe1ed644e4231b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZDA62382501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be3084d60655a4cf387e38f91e633fa8f2fe80f91bd61f0e693dd1689afe8bb. 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/QZES52379512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb43f68b5b0f48b53abdbf7f328fc427b400700bd757b0b9c7d1a06a68c0222a. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZK6J2387126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632fb9333c8233a1ecbc507d7d20cb1a0dbe06d81bc751f9a27500585a9731e5. 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/QZFZ22483703.
your sitting down in a grass field and you just feel the cold breeze type beat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b9147149293a59cbedabe7110d073d077569bf095be91edc3440aaf80517bb. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/QZHN52502257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c69774f6d6d9311d7afd94f8df3280dcde740d7c44fca55e17ff269b3918f0c. 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/QZRP42581872.