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 0x80d2c27f105937ec564a24bc9f6816ef6b1262074e2ff8e2c41e50fba9fd8634. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ceda559-7adc-4dab-9aa1-19dd6158cd2c.json and https://artists.proofprofile.net/proofs/artist/8ceda559-7adc-4dab-9aa1-19dd6158cd2c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Habibi Ya Muhammad (Sholawat Isra' Mi'raj)
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 0xafb2cd068b4b7e53978a9cf43f00ede327ea5d7b24e98885ab56fbcffa76423c. 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/TCAHP2328952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2b15401c1f08d67c638a2eb241b406daa41b92e4455bff13b962ecf4a40b2e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:41:47Z), 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/TCAHP2336129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436cf64a0893a03d64c17e27b7fa102c1f7f258be0931b505e9571d1c4794eec. 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/TCAHR2319136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd82bac672abfca21ff1aeb55879e3b9b7557f433192d523b60f0ed6790712a. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/TCAHT2492720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39076182b6efdffb5d7dd4c57ea72b7fd33f752f809fd9cda824409fce75dbbc. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:54:58Z), 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/TCAHZ2424679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b17d04ee9b348d99dd3814d3c052fba2a67147c24c39bd389d942f511c1a5a. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/TCAIM2497181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985ee8e1ab7b543198c8dd0c2d2bd0eebb12292e2e5f4bb9a921ef6da6edbcd3. 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/TCAIT2403797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365af5998c4ba1a45e6f59af5202843584fa624ecb9414b94b012b61cee91400. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:25:28Z), 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/TCAIW2494519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabcbeb477c6a14f73b9f345ca371141e50e863f1b0badd0e283f6dd7df6f5c2. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/TCAIY2402984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ff48371153d05f191f5632ae6f6a224211ff9646f30c0ae30f7b8e698009e1. 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/TCAJA2424996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50344b6085fb420567647c6287ab017427bc02d664997add739624b2f89dee86. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCAJA2418216.