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 0x495e204070c13185821ac0f41350b37e792565ba3a5e56fecf21de439343b1eb. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46942bd8-4460-471d-b397-da4502af11ff.json and https://artists.proofprofile.net/proofs/artist/46942bd8-4460-471d-b397-da4502af11ff.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209afd6ef54a23980ce9d5dc50ced2588e0a7557250cdcbc10de39672413417d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:52:15Z), 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/QZTRX2540706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528fc0a5f9ceb99d21ae722c98ef3e66e9bd2e85f0843f0ec679c54e81a219d6. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:58:18Z), 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/QZTRX2540707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c007cea48b242ecbca707d75cb896dba7c79180409366d9820c1643d814e756. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZTRX2540708.
A Lullaby Carried by the Moonbeam s Touch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b6916d30774844ce61c7a3197da1572543f7342f5d793d721ad9e6e71e30e0. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZTRX2540711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabadcac5f8f684ebd40ddfc1390cc09c4355b6fd459dca9418cf970a5cfc9b4d. 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/QZTRX2540713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2fe85b3a535bcf733d86b2e22cc7eddbb8ee0aed6a3c817405d55ccd5156bf. 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/QZTRX2540714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eea56a1ca2a91f7554277ed737e1e79c09976ac60e4d7a9b7a7260e35a4d9f9. 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/QZTRX2540715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8837e087204d38b6ef92fc77920815ffdce77c444a7b41a62132714aa0c02a56. 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/QZTRX2540716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3e5009ed60f32bc4c16c47bfd0930d60eb7d517ce2c140b2ec20a3249c50c4. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTRX2540717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4a4dc0066031ff74499c9feadd274aefbc0824fb00de6835433edbdc5238a5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTRX2540719.
A Lullaby Wrapped in the Arms of Twilight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fcdc9ead47ebc448a9fadd848c41065c2ae7b484c3290ec113cdd6353095841. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTRX2540720.