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 0x2564e15fdcfb52166eade8f96d0e6df59288c8ac5cd8180cd697e262149bbe98. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b01bd386-36de-4d18-998f-7cf92662544b.json and https://artists.proofprofile.net/proofs/artist/b01bd386-36de-4d18-998f-7cf92662544b.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 0x288fc07712586f00f70409e325594fae1185dcf03d8b09bf4cea4bd7ff675d00. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USBN20000872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09253b2e4231460e8a9ced4f9107b151aa937eb69499dd1cef6d0fd29295df5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USBN20300233.
Little Angel - 24-Bit Mastering / 2003 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80a9526957224f474f4366b9c773906cd40cb9af5b56953399899357d65c242. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USBN20300246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6893f388f0b868202a5fc52b93b3bf0f380d35bff0e93e604dea7d763499c129. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USBN20200185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a31cf7e529b944348261aa8d5ca392ac8504805d5db932c3a3bdc36eabb44f4. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ITO0P0401062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982ce864dfbf3bb0c654115b5e3d7247c45d1b36d32becd9ffaf2a938ac17fd4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USBN28700070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6fbd51b8c94395ce469d4f2291e642a48ab2fa78d045f3a8b5865b0987ef1c7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USCA29900969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3d28aa950e9b4a3bf4425cf6864d30fdfae14d0cb2e7449756f3d4541224a4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USMR80400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb29582a8e09572849714887bf780bfe1cb60f5a795bb302b8082097e9e5b8a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BREMI7300618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b928e3df6896f422be2face4ce04e1b00013402ef7366eb38d8f31014f573bc. 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/USBN28800725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688f89bbaba4aaa573ba881d138e2f1f36abe56aeac44f538e38638b58c38af4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPTO09807160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5cdf46d0cb5e502986247b75cf1ed852941b813372ea76b61718b29ee8dfaf. 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/USCA20001369.
Wack Wack - Live From The United States/1967
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d531c12a0325d575b91a5eefc89b70d88033c341f26dda31a05e06bab8a9f6. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USBN26700106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30a4a0bb64f3b8ebd70e9097b8234244e25d37b10f42dd87df04a1f65421b49. 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/FR7V30500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e58397efdbfe9544e6bc746ffa2783888589cdf60eb8d2d51621dc05807fea2. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USBN29200196.
Kathy - Rudy Van Gelder 24-Bit Mastering / 2002 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9060ada06e40c4b954dcaea532ef0615012cd6799659edc36d7f1146cf823d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USBN20100717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae4f0649c39b1782232a382f8ef1018ee01f02faa1f6cae6f80580f1b63bab2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USBN26600137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711f8fe4b44eb23eb4cd34cb5e5eadcee5af8b907b89eb7ecaa94375d5b970ba. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITO0P0401068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83a0f971533f5f1f5c706d7e9605481d025c150ce535f97d985852ce9b89676. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BREMI6500113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ef28279697656e6411c9914deabb79d4910bde25a7886cad5383a99ab47de5. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USBN20100919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a6f11c55253d2de2f29aed79ca7db0ab34fe04fad125a508aab0934d0d7d54. 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/BREMI0501102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61948e3c0f594e7203636ef8b2fedc22750dbea5c7e78351665e4778394ba3f8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FIEFB0500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b6f6c61cce5cb360e5128dbfd2adbab660e92b5cfa0aaf8d71a74a03adc4c3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BREMI7300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34d1c1153e796bfac969613c49c554675b3201de8864e6b5dc19e67e99d6524. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USEM39400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb39fe98736d84bbf30e3c19a8fb68c67dad1a0c83502d79ad55cd82b3573d8. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USBN20800397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd6eec183d9f363ab4b07839be71583bcb05303e701448f745d90ba21c088cb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ZA42A1546416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2660feeb104ab63087ccb65440ed252a99ed005e771f557385e93b2ee1ba4297. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ZA42A1546417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7ac74e5eddbdb85e74583e3e4871760b3b1f277d33326867d51af614654817. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ZA42A1546419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc092018ffec9507eb189d085635d7fa1c127ed10a059074e2ea68cc7b2c9a7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ZA42A1546420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751b3fccceba6b7ad8dc598fe7e3643843ae45ff473706589a69fd85ea7cbd34. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ZA42A1546424.
Organ Grooves And Soul Brothers - The Best Of Billy Larkin And The Delegates
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c2516eacb0ab8c4e861cc72ec51504ea0d3bca2a5ab8bd0eb6b34d77a5f1dc. 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/USBN26400122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffa0837e9fbb3cd3fc5927af71fb97aba56226270241e92c46756ce14dfb728. 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/USBN26400123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb7921c64f4afaaec456400998648a4254db7987a541e871b685183fbfaf5b9. 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/USBN26400124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86426b589465cc69a0ad129740f145affe22b916f30255ea117dc48648ca347. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USBN26500175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23290acc117fe8f61d76ab06a5695561f74cca1d162834c308086d5d700eb421. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USBN26500177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b05f3f2bf817f4a6f9ee7d0a3329db8cc4864e39b7a104017ff1e746b1a448. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USBN26600142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893ae8f4ee603175c844fb473e8498a79f2137b6a88db381a5dfbb55a52aef87. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USBN26600144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb60d67db8db0fabd28b0c2cd2812b0061b73b90f865f685b1f5facb5103d8d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USBN26600133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae4f0649c39b1782232a382f8ef1018ee01f02faa1f6cae6f80580f1b63bab2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USBN26600137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814ec8995b1d11762a0b5bac0e8343520872d23d18b8648e674855d8e0249eee. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USBN26600138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d228f5be171daaeee63a242deeaa96b3df784045326ce95ee87c5dc44ee9a3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USBN26600140.