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 0x47808e3760f054a9e305fd93c1003d707d970db02af054b73aacd8afad273af7. 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/577e1822-d477-4a9d-8f19-2d3383c623b6.json and https://artists.proofprofile.net/proofs/artist/577e1822-d477-4a9d-8f19-2d3383c623b6.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 0x9e25bdd4fd1f52b721b75550dba4634d179721912fae4ce14d3f50acb63d5d81. 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/GBBZV9603199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544852e1aeae2f857c28610a4fc81951793b57bd1205d0837e2844354c284382. 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/GBBZV9605135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d6899ff4e8eab3d2fa6a7e3b25c79eea90fd9c2149739e565daa9bb462d3ca. 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/GBBZV9607071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ccbd4a8ba6c2b8791f4371d64d991875a54af0f0f1b446e25f8e98008b2334. 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/GBBZV9610943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82421d3976a03fe2e29ed01a12fc8ed42ac26c3a40b90c679a96a39f9db4890f. 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/GBBZV9601956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b49170e3fb360c25a56091eba3837c60b3668851927a41e8bd65a3721becaa3. 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/GBBZV9614815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9edda0b5e214fa2f0f273f726cc04b1bd65a50322b784ce31b6cace50bb8feac. 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/GBBZV9616751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85dab071ea52e099bb0152cfc86b168bce7dd131e0dbecacadf28bcffb029ce1. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBBZV9618687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d33c741e7851a0c34bcdf549502f1e46e2e624cea497a1f7e2b97c024d8b05. 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/GBBZV9620623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe303dc6f448fb23863a60e1d7c792a4ecca781e4c2eee892b9a27093cc2d95d5. 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/GBBZV9623188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb4e26e0d9575b69d8cfde13a719556cacd6e948e33228498c7d7bfee961461. 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/GBBZV9625124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a358c80232b4e490afce4cc1b124da32d08f6213a05cab070b5fbb7f2269e7. 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/GBBZV9627060.
Reggae Anthology : Classics, Collectors, Dubs & News
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341621c1cf16643cf9c9b0b5a02065c74b325efe276eece3d329a258c5412556. 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/GBBZV9609007.