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 0xe0b02ee79c63d159a638a3c014d388f12e4ed2ffccbe672d852ae78316b7147f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/87e137e7-3f31-4e90-950f-6903fe7919ed.json and https://artists.proofprofile.net/proofs/artist/87e137e7-3f31-4e90-950f-6903fe7919ed.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 0x5aee6e7833ad1a0d563540ae40ced53c3994a4c74cc776c8afd864991ef2444f. 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/SE5XG2500578.
Allahumma Inni 'Abduka Ibn 'Abdika Ibn Amatika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ad466d6095bf8f70392ad9c5479d0f85254065c88a78bb198ee3ca9073a8ff. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), 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/SE5XG2500579.
Allahumma Rahmataka Arju, Fala Takilni Ila Nafsi Tarfata 'Ayn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d961f859630e3e840fd666b555b1d046e173723fe324e933db7ad701cb498ec. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/SE5XG2501181.
Allahumma Inni A'udhu Biridaka Min Sakhatik
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9422b41fec28e3a8e0c2588cec0f3014227df037b0bc1122e64fdc62f4cd19. 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/SE5XG2501180.
At-Tahiyyatu Lillah wa As-Salawatu At-Tayyibat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bac11048ecae6f6ad4cf2dd55a88d27515615b62456f56193e6b2b14439b83. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T08:01:50Z), 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/QZZ7M2564163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c55e7436046e76548ee39dfdffd7c1b4521277acadb6d5b2f149aa219b28180. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZZ7M2585476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a21b6613343343fe9422ebb68f8f7411720a2164e30140f394f72b458f901b3. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZZ7X2556242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab8580044d404e52226c5fac699b23ae5416c807676c4b0d1b88af77c034456. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZZ7X2558881.