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 0xf11b4a10f476ea4c23e4c23879d85e0406b11aa5a31603a3bd58b8a98c9a266b. 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/2c29cd94-25bf-4402-8aff-fea7ee7ddb8f.json and https://artists.proofprofile.net/proofs/artist/2c29cd94-25bf-4402-8aff-fea7ee7ddb8f.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 0x0edabce83c358a3b6e5b0095ef989ed5124245d784830938f4d2d1958d752e7c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GB2DY2201062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9874c0026c2c43aab4a96cd05c7ba301125e26f3c03a740b02ff8af30a3b9c34. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBAYE1900099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163e26a0e4885fccd40da284012ebc7f0a5b0d9c5f1da715b1f4712fb49f163f. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/GB2DY1800947.
Flair (feat. Octavian, Yxng Bane and Suspect)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e73e21ff0fd94d295ce98750c9bc31a3515b2de5e328f3e4d411f465edd140f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GB7TP1700108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91666fcdaead62b99d81f6cddb7579f7c003c55975b03fe084483bcf956d4278. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBARL2100906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3782bffc059f61ff1dc89a28f528ee37097b13b332d73d0048973bc61ebb78f5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBLFP1955969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c710c7f4c03ec867195738e06d2fbee1a29b4bee9106454a8ed1e0cf8267743. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GB2DY1800875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa9b82474b9b93405c53401e85d70b89ae7be66906c6d2e758fb1177f308974. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UK2DY2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7603675f1ee28fb038e34f901432c57fc27a0ef91cd1b42348b205a9674530. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBLFP2047457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46310a6a899ecac24db9d231e8b2a9c7da65a9bc44a1655a3d6ab934d9b09ce4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBKP92000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07af84a24fb52649981a59fe5f1e10e3fb9baa11f0bd57b419a6fcf6148565db. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GB2DY2201049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ff1da4d71237ca88be8dad706bcd9fc1171df6a7fdcfb1bab9b23b9e3d05b6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMFME2178717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ff1da4d71237ca88be8dad706bcd9fc1171df6a7fdcfb1bab9b23b9e3d05b6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMFME2178717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec48f75bec966bdf385a9cecacc8ccfecc2b7aec868066f49ea83e95dc2da210. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRX201758335.