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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9521ffd5c7702adad387784b176467e186a824efa53113df8c032bef7423a1. 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/46ba50d2-2dbf-425b-b1df-ce6bcbf022bb.json and https://artists.proofprofile.net/proofs/artist/46ba50d2-2dbf-425b-b1df-ce6bcbf022bb.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905c43e493f80a809d92bc3f7e960467b26081b97bc26f6743416421de724988. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ITDF61919072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ecd6a233b3676c7f730163b3ad7ad6b42ed2ed9c8a3c30e977b89aff089a82. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ITDF62019173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95905e76e6edebc892af2a5e8c4848282e210427cd5708da6b32492a17f1fd12. 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/ITZ1V2000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e542c3d5057ff8fd6eeac73abc1011a4296ea3d952297cc1b6db072ef110d8. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/ITDF62019491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b744f8d5559968b6a105e9ffbb7a3cf40a22a98fad36b00b3c8d878f76d673. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ITDF62019483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913a4bf161e3e1c0babdadecff8120b63a16c1c9906137ce4376f4f7c54b5a67. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/ZZOPM2226489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c991779a6af7781bba2ca2378aa117bdc4d65eeba3857eabc45eda397df79ec. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA2P2243976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28fbee0774bcfb093e50ba5716ee40dc90a9b3f2694c1bf496ffb1b1fb457eb. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/US38Y2305405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155fc0a4837c9d62eb638c61b3a16bb875ea1ee3431389b960457b0a29ea91e4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/IT0R62300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4c55e77cc86b1cd07c685e653b956f9fff61abe32f7e3f1e2a39cb94439f99. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/IT0R62400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63ad346a6f9cbc48e347600f88d042393973c506abdf24c58466d78ea50dc44. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/IT0R62400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b018beb3932c35fbb6374efd840b7a52aa192b76b7657d841bb7598ae9c544. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/IT0R62400102.
INIESTA (feat. kiddkasal, Korbe, BigMadWolf)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89641b8df1f25e185777ba0e134914a68db67c7e6da273a774e91d47e96c45be. 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/ITVU12500026.