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 0x348de8d534af3b713a5bb15f1e1d15547a73a5c371e2ca85c260dbb4100f40cd. 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/693c2c8b-3305-4eb2-b01c-a6b39d50487e.json and https://artists.proofprofile.net/proofs/artist/693c2c8b-3305-4eb2-b01c-a6b39d50487e.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 0x0702eb221375b5761a0d824da857555b2655b73ebffc850cae6d44e06f531666. 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/USA2B2100838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131a3985a871172648cdbbb66fcc1b9157a40914a35c1c8e86be1a50c3421ff4. 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/USA2B2100839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc623eaa4f9e018b79eca385db62c87f6dc981524724bd252aef73e65a2b32cca. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:29:19Z), 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/USA2B2100840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8926aae0fbcccb26465d626301803cce3bc37a9c38bb5c21a03ad005c6cbb40. 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/USA2B2100841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4487ceafac60b0b2dff6bce78c5e098dc4e7dbdef45cd978865e8ae1f8eb5e2. 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/USA2B2100842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7603dc692123947a08147a1e94ae60a343aaf53bf37fd8a36fe8a77055643053. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USA2B2320432.
a silly little guy on the fabric of your memory
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09354d8ee046ac7b31eb85f820517409b7ed25c6e464b359cc1551da145dc8eb. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USA2B2405384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8193cca308f241c15da8d2d8bf9fd86e8a2cb5f7c0989a036fc7e8663b2d69a3. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:07:19Z), 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/USA2B2405385.
fill the bellows of your belly with their mechanical wings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e971f6ad5f4aef7add4f82fd16c321f542ab460dedd3222a2582a0729eae4b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USA2B2405386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba633d08e97a948ac306f951d0ee199d846756900934016b0c0eb4520ccc597. 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/USA2B2405388.
Bowing Cypress (Black Dirt Piano Version)