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 0x132904959bb9de312b83827a844e39feb595ad7dd1fb82f44bb1c1e3d2efb110. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0608a09c-8210-442a-a854-132bb0ca1ee3.json and https://artists.proofprofile.net/proofs/artist/0608a09c-8210-442a-a854-132bb0ca1ee3.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 0xcc12fd83753eaf5a514b41b3145628636ff9b30a24f07df262bbd7ce6a401aec. 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/TCAEC1932340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94381ffa428130aa79a9c4fc5182ef853dc69557c20d9c770c7ef9bd9491ee54. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QM3DF2143765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ec3ab6f57e46a768481afea780125da047535ba1528579b080bc1214082acf. 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/QM3DF2159897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ea4c8de8bcbbf3b5e5c2a549f930e07591aaee0cf5b2779c230c43034b01a4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USANG2214237.
My Appealing Delusional Perverted Reality
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730e9747a15a8bc1675e98bc49447e0c11d7ace104b4219efa71f2da441142f6. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QM3DF2253186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5802b18d45f1b9001477734e255d77f8496e87f1006fc55689dfb6db2b6079. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/QM3DF2253189.
My Appealing Delusional Perverted Reality II
My Appealing Delusional Perverted Reality III
My Appealing Delusional Perverted Reality IV
My Appealing Delusional Perverted Reality V
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c1bea237ec59105857da9450b542bab27a8039984c16914623b1554271ae8a. 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/QMANG2230795.
My Appealing Delusional Perverted Reality VI
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d277709abc0e0aa083964c1fea477a91ef1356ef337f0040a6fa753d51bb4b6. 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/QMANG2241138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094d549252a0667bcdba7ac4bc142c7c6279fe4037e632a91526c0240c0b04f9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/US3DF2450232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c41a8090aac08f3aafe29caee0ad93b71ec43d80db41f6e1123942cef94e529. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US3DF2450233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d76ff6cdfa0cc967188431cd049744769a644924d92b25a559c3b80fbdbb7a. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/US3DF2450231.