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 0x0bc32dfcd7bb7ef70c3c87de35d5a5b309536ee11ee9c1e05b6178768beef86b. 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/b86f9214-7360-4a0f-85d3-dc71bdeae97e.json and https://artists.proofprofile.net/proofs/artist/b86f9214-7360-4a0f-85d3-dc71bdeae97e.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 0x7cd14b009726c830bd2500fccf07822e8fdeae83a305c54d650d3a382ea1751a. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/DEBY41200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce976168b089e89c6f0029e6921b0612757e8d4b33e15c29d9a6f79136a28d9. 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/DEBY41200076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee4db04206130f65496b94360d4dd208daa6f90eb5c53d9c8461b61d1897e36. 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/DEBY41200108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd479bb345016b68164846b88fded526b9b8593eba48e9cb7369170f169601841. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:49:01Z), 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/QMXZD1100207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8facab74b3f6326946d0bc6251d876fbabf87af836805dff1ee67371dd26aa12. 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/DEBY41200290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e21a59d4cfeacb7e3e698e994be8646a5e8a3d56cce6ae74665f87f880b573. 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/DEBY41200291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e74afc2f72154abd0c1798580768f4ed4909f2e41665fbc4d92af64d5a3780d. 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/DEY472081280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82ed3b10c69377de0569df9e02d5b9b757dc369003e22556cf0fcfe4de6901c. 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/DEG932004345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d199a2057e5476eb5a9498368df1c2cec8f1da1033354a5bbaa9912ce0f229b. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/DEBY41200516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b9b21b890468847f2576ed83b8c72773079e77d5f471c7cb3a5f23a3dbfd6b. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/DEBY41200518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac2e4f90f74a2f30231d4b1bae63e8354f3caaf7ed32a362f7370484a4590ce. 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/DEBY41200550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e36608484ce8f2d2aa8d38921d8812e64e61941f974c78ab7014ba2c9e2b194. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T16:48:42Z), 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/DEBY41200551.
Stop Trying to Sound Like the Chromatics (My Gf Says)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f9edf59540426a5a70b9de1112f0eb477952ed75e166e50d03b0a967ec066c. 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/UKN6K2301563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf8a51a908f5d595a1f24cb97c5b90872ed6041fbd74f512b8c2becef5a23e0. 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/UKN6K2301564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511a59b0e19d3d81bf92e7fe6680ae3e9271a4e797f563de08b8bcac9833a2d2. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/UKN6K2301566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66820b449e63bc3dd86340907717c88ae4fbfa13b7e08666071e9193abccf11a. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/DEBY41200813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db5ddfc13009298dc1abde4063b94e6707565ece23b6867ef52505aa92fe6de. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/DEBY41200810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafae35b843328a49336af38ba5b40a5582aa11028d6b55ffe5c30806c92753bb. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEBY41200811.
Defected In The House Radio Show Episode 041 (hosted by Sam Divine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b644ccd5228006c88f46e5d9898806aaf1aa0cc96b7c870532e18b59730226f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBCPZ1710834.