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 0x398d0fd7bb032549a1c076ab05152d9d11bb9e3262025f598cbccb3d7fee480c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6585c86b-2ed7-4710-8e29-24c9ebe4d6ef.json and https://artists.proofprofile.net/proofs/artist/6585c86b-2ed7-4710-8e29-24c9ebe4d6ef.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 0xbecdf44b20d7cb4950ee7d0846f5742780c16afae36b75e032758c8c651818f6. 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/TCAFA2051201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca2c4385944e6442c4e8ade556ab6b83380841e228a7df1d54ef0d3773b346f. 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/TCAFA2051283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbe46f62e22884b11e3704e7357c9bef703ec91aada82fa882e76a6ab0fa5e2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAFA2051329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cbf0a38eee6a80f44d79ee307f5248290483bb203741783f31c3a6d56f25a0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAFA2051368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafb57326210c46de6283ce1685e91c40d1a6c4b5e23a35c91f33e1def47fcca. 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/TCAFA2051375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bd5986e148fb5ab27066264db6861cbecd2fd5cb886d3a93b5d889a8c1c156. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/TCAFA2051386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8318cd19695a16ad2abd7485e8ba59f50a84d53ec385d35ac6af3956b25f97. 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/TCAFA2051389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38ff3f3ba53e91c5fa3a3b625a9f0d38ea2a24640a89710f84082f8e126c8de. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:18:33Z), 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/TCAFA2051392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91430b0a1e6d0f6e6ba6e058f2709b06709fc097870346e692480d80c3f5bf47. 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/USFMT2203703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f9945c91ebb8dbfeb7acab337b07efb111b0321165eff88d0bb80367614f5c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USFMT2203704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8207c58e8099cbd25c282a031ca80e882c2bf899da1fe8fe9cc25bf4423e5e2b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USFMT2203707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607cd2e9f0afa7ab322d50f2bd04f977bb8a769a01c25750cce44e8a601c549c. 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/USFMT2203708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b3e807bc924bc2cb0654ed481bc897aa94825c9bc30dcb3f695f32bc8455cb. 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/USFMT2203709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3bfdc0d7d7a0295b43f52c14e38eb30d1db4b23cd1d52d7eaf492d1b054cf2. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USFMT2203710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf759c0f485ea03499877fbe061bae6e82154f24d3c74075fd491afeb591852df. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:06:13Z), 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/USFMT2203711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5902e4500edbf8aeacacc6ad5f4412e8c88fec332a54a93ae52e12feac4f414b. 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/USFMT2305005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a71891728ee6813459ec88a4d15acf9cecd2a6bfc8101cb404bf3137204c5f. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USFMT2305007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3b097336793201868b4fe81756277332cb5b82d5003f890245474f9b829469. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USFMT2305008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd89175b06dc932473183abfbcfe931169ccc7deeca7b548d3b32360318747ff. 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/USFMT2305010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1407317a0e986402d179892083052bfc5c190a775c4539bdfc8f1ea67c8fae1a. 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/USFMT2305011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a453bcaf48fc59684d75a5f6067601c3d9fe43218577db00191e5139456e6e5. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USFMT2305012.
Running Out Of Hope, Arkansas (Acoustic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeadadcbb682ce1efab7851598b60c9c721c073c07c1e615d0a50573a14b0dd5e. 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/USFMT2506603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89264b1a51a560a7e9874da560c03828b31f006e1bdc0762a02ac2c5ba2ae456. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USFMT2506602.