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 0x0481bcd84533f1677ffbb669018a6c281278e8dbea19c6205af544ce27212ad5. 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/952d96c1-a478-40e0-94d0-d4ea841c5196.json and https://artists.proofprofile.net/proofs/artist/952d96c1-a478-40e0-94d0-d4ea841c5196.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 0x55028aba925ab91c3346abcca92088ac2b98c47329de5a3509c8ec30aca4de1d. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:27:13Z), 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/DGA0M2360710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b5d68a4a86c931934a95b0acda56362a9862030e8d5d5c09f2ecd0897f4c39. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:38:23Z), 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/DGA0M2360712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5f81bc30a3698ff9a8ce5329775c1a8dc275942447e971d21630e3de782968. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/DGA0M2360714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540ad5cdb0c7816e28b5b175c86222a0ed4a21b291f9940e81eefc5453157b86. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/DGA0M2360716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6b48704ce01524365637b633c44d68e2341ec296b588b3d66707f69c2017a6. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/DGA0M2360717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69a68e9fb002a901392dd3284309c4acab7a2a3a92bcaa5bcf1caae4e30b071. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DGA0L2397112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368519b4c02d8d21309494e8fe7f24ae519a1a6e1583f597e04a844d17d9fcb1. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:04:35Z), 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/DGA0Q2315808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e9f89292d67ff1aa5d1b49cbfe8f41069c4e3ae23fcba9db3868ee273f6221. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:55:29Z), 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/DGA0Q2315809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc3a6cf156434559b72b411ae21d1e5f179aca4ed1b56ac3f42f2b79431a974. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:19:38Z), 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/DGA0Q2315816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e281b1786fdcbe5f5e150ab55ba63e5e738d163a8b9aeaa6885c98755a34e8. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:10:37Z), 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/FR10S2405884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525970aa89de36a8a807097cb86d104666a456ffe72156487612ec6759c23a35. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR10S2405886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57be0275bbba2ceed3d2752710bbc34020d3c290de029f60b7705f8b72780ed. 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/FR2X42438817.
De Parranda Con Los Renovados de California (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e90287d390fe4eb1b4146eea1b003ef2c08c58555d09bb929faa72685e09ccd. 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/FRX452473968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf421c28f2866bf9f7b5fe8b432db9b11a4710200d2ad25db4d01cbd2ce3ede16. 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/FRX452473925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3824b0e66eff5093805b8810726448370a96f9c1dcdde3ff19169dd2d11683. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:02:46Z), 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/FRX452473927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1da2ae7da10bacddf1accad55dadf43852853322d09d35d634d7065cfcf747f. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:00:45Z), 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/FRX452473931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c431193e339f41e8d4161324ddca307aacef205c7768b123dd1016003b72248. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DGA072475554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7506ece3819f52d7c4e2045a75e489af1fd085536c91db1902282b3c88e3df. 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/DGA0T2409984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1926a09fe0da84689a8e2d5c0aa414ae7f435823b8b00d0f7ea2d1056f0b3ddd. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/FR2X42535547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa6f25d4e2bd6b05c72551ba7195e279dc5ede3110970ef4cc06abf4c9afa02. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/FR2X42591848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2fcee72ab0353d4a34bb8137dfb78c6d2741ee48262a03f1fe91ed8bd63cdf. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:33:58Z), 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/FRX202594613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e7d1fd0bc8c7b46896e5022ef375fcba7ffc555957f5ac715e712aea13e39c. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/US3DF2507476.