{"copyright_id":"0x9a34ddcd1c7e6f8686ea638d4f3ef67ffaccf2efbca8537cdbdc23bdabef27d2","name":"Billionaire Black","registered_at":"2026-06-12T06:31:32Z","symbol":"NIM0215119","token_address":"0x66da81d8f4ff7b7e76f3d868f01562dba658936a","type":"artist","uuid":"a68eaf49-01ac-4f6f-a9ce-80aa311b9788"}
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 0x9a34ddcd1c7e6f8686ea638d4f3ef67ffaccf2efbca8537cdbdc23bdabef27d2. 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/a68eaf49-01ac-4f6f-a9ce-80aa311b9788.json and https://artists.proofprofile.net/proofs/artist/a68eaf49-01ac-4f6f-a9ce-80aa311b9788.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 0x762c3544ba95d5ed1a663535c7d083a97409f32828b7c28736f6e24e675ae0ae. 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/TCACZ1790135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6091cfee0070cbfedcb10a49f12d4d786c32cef20e8640dd9e44776ffd536725. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCACZ1790148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace7024cff229dcd8e5191cd644274e50340c522ac73d10d9c7c8e518ffad7a6. 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/TCACH1586864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0398990a6d133a3217f51b66e52396686d409a9fb0f3ba4d9670b27d2529da08. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCABP1356108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5bab101f254d8902a8bda1734c445f530d306981cbe07c1d25d56a261318f0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZNN22022001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65adc23073e6b0ef39009fee21c09f7f8127db269dd41ebfc19895a55eeb885. 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/USUYG1067798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e40f98b21f69d1726cc25d52e33bca5d922609ae6317824b6e40b16d537056. 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/USUYG1067799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8f48094ebb45cf3a3ed28a21b117d94ec5e72483114af7ffd340b888539a95. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USUYG1067802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe877427ca6071c51b6884bf5a3490e879585c87df0e12a234a93bada4c385b4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USUYG1067803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d82bf3823972ea5116013222190590068d7c6b084f9002273052ba6ac19fcc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USUYG1067805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4534562c80b9b1a148e42470808c355bdef52cce57b3d02bbc8cc5530b42c491. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/TCAFD2097391.
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 0x28bcfe8562817fdd2113af4cc3b8636bd30fc14b5924b847300cd38357235682. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/TCADR1881435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bdf7ce70251f48f7b2261c5b25985a5fb40b3bb0bb6dfacd80b65edc49861a4. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/USUYG1067800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd52002ebf7ac578d137abb71a5fc49e6eb12559b11147adc7b2b7e89309edee. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USUYG1067801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610fecfa67aa07de8e5b3225e78037552b3b69c5791e148980a6387b80e0762f. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QM4DW1792469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4048111862b31cf2e344891f0be80403fb12ac2c64e87ebe2116b4f02d205c7b. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/TCAES2049492.