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 0xa44d9fa9be46f5063a9375bdacbb8a6661244fa5b2fa879b1e8048d78ace17f0. 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/1636479a-84c8-4085-b6ca-5e8090fa34b4.json and https://artists.proofprofile.net/proofs/artist/1636479a-84c8-4085-b6ca-5e8090fa34b4.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 0x308a8e378aaeddb18c0dab139b3b2693a86585758363e71b23a2a07c8677f4f8. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAFF2033680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbccfd5b4dc0232aecb6524419a14365700f8b533468d43956313192291c11005. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCAGM2239018.
Live Ah Lil’ (moment for Life Interlude)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d06b595b955354ff1eb5e76852195445f43b6cf365003d90acccaf6c8a2eca. 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/TCAGR2228855.
From My Heart to Yours... Sincerely, Hud
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbec1ab2cb9f5804c588716d6bd9a576dcc4890c8b486f974964eff72fe1a075. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/TCAHA2384187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac194a2f41d87d4c9445025d1792d372df8f924e18601cf5fd42864ac09e8fb. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCAHD2303464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd196f88000a7dbde252588ce485f8fca28516ab651e0d3be037ede6a2ca0825. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAHQ2335155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28745743abf4008aef57b00b4a79a8ac91e4125005f1d7c5a397282c9c17e37. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCAHN2332635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcde7895f9f49c80fc4dee0314abd2fdd49d0ba2349676a6f2ba51322fd9b75a. 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/TCAHN2332699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2bf4b600502c346e3246aa56e6b5cc0d30a6e2bcae4f38b5f47a3dce8bf3473. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/TCAHN2332701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd042b7f3d24c57a06c372165c085921c24fc0b32d49c7de1f9dd2b0953772ec7. 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/TCAHN2332728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6e25ac4237d63560d372a2cc46a84d961c6bb3975543afbcd42e842d02104a. 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/TCAIL2440091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b01547a93ce070399741c753306e82947d203ba933946a8e0cb8b8489a037d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCAIN2482109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a30cef67dee542929e127b02e383d33a7bccb3870af3796dde8869950a7ca9e. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/TCAJC2495104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3e59384aee8bd79e7b66b1916597185e3b9bcb9e17d60f36de85cb793fd94d. 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/TCAJQ2598111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2decbb3bbfac0ce9a993a8555d1034b50295a6bd30f75da2d4e528fcd186b0. 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/TCAJR2515383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4a11aec4e349208ea9a429b549ee098825c3f01dc45e517e731ca24193e449. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:06:24Z), 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/TCAJX2548968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424fb5152c7ed5b344cd7820842d63178fa18cc3e3ed55cb44dfd1e45294229d. 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/USUYG1483281.