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 0x655566f2ffa094e9eba114678aeec8bbcf3d06ba4620a204b53b608786e26f81. 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/4e94153c-8420-48e4-8dff-e410c625de92.json and https://artists.proofprofile.net/proofs/artist/4e94153c-8420-48e4-8dff-e410c625de92.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 0xf83c11a15fe5b92df82277f5727ba2c6c5dbee0596d08f44f19d1f7a808de503. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/UK5BC1700286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb5b4ac478003961db299befe262ea9ab406f6492d9c01f6f6e711ac4c1bb44. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/UK5BC1700118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be1e513cfad17e24271d16c09dbbf9629bf533d46df5bf59f1fe6672db7c38d. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/UK5BC1700119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7175ae5e14613a09c1f78142ad886b47f18371ed060c6e8259f619d37b9d6f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/UK5BC1700120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf305b0b3f407cf24a48b30c7e4865b1b239e5cca88bf85bd69e906b2973ecf2. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/UK5BC1700121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a0ecb170f4da300e3e463d185e92c2c1c1189c7b24385cd725fbc85195ebf6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/UK5BC1700122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcb83fef2fc5d753f0c50ce89559db906cd04d7c777876a70e70cdd641f2b38. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/UK5BC1700123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d7108ce4a72c31105780544c71d0298713d72437be34abfc801e9926060345. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/UK5BC1700124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e2feda6c9685f483b4115e4f01ae9e71aec59a46a06aac84f744d33be2e56d. 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/UK5BC1700125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b8fb5fc3f36d026b32bf9184e24c0533371bf5cde9b80c133a1cb523e5b93a. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/UK5BC1700126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1798c156284e2a0406f1aacbb27cc186c41406ba7089e8aa89ba43f5f4ff761c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:45:10Z), 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/UK5BC1700127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0a924137abac7f70a95f49d8391ae18ac330d0f05f4472ec1976e58492d662. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UK5BC1700128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08412f5c0b323a88b9ea5fa38ed40eb47cbf396e7e95b0181b6fa91ab1e42e1. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/UK5BC1700129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208dae2c9903e68a4e3c39572238e9e9c1dfd682634983de404481a50dfd09bd. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:18:29Z), 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/UK5BC1700028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae966ebe5d3f697e8930b69f6678d358c2dd90347b39bf7fbd641e40aec3ad3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/UK5BC1700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6ce9ccb9333c6ce73d337654ab12144ac308d93cd221858515d6ccf991d140. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/UK5BC1700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d3c626f25b2d08ecf77dea9d137d6470d94aa8434b3e62fc859a3fc127ba1d. 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/UK5BC1700035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fc983c93a1fd7e54fe26869cc5613ce00baaba3ed1ab81d2386463331bd1b5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UKW3Z2302069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5160a1729883e5449cfd46f66aab54b35a91da22c0af8f8e802e3c70cdacccff. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/UKW3Z2302072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4ad3fe96a2b2ab49d68786a33dbaee6d4a2bdb754958069e513af6116eaccf. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:13:54Z), 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/UKW3Z2302073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc417f3a70dfc1b8444c86506b03f5f202953989c09dfe7428461719ba8e1c371. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/UKW3Z2302074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd875822d4098255ee4955e077b4997a4e760e0c62c9a79c6199242177ca7328. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UKW3Z2302076.
The Murderer Lives In Your Neighbourhood
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cdb932323054d8538378c113bbef6d9daeb2c4bc2f669f85aabc1c2c80c936. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:03:05Z), 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/UKW3Z2302078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1206bdd8d7eb9c510228f7f45d07715194805aa2318778df00dec1cb7a5733. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/UKW3Z2302079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb055796bab7330da454045b6ea9e1aa52b784f14f86903cd55e998441d6bea14. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/UKW3Z2302080.