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 0x3ebd8d6628b41f12c43b81a0ca9c09b545ad264fa7191887b91fe47b15d27756. 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/fb1f24c0-09c0-4d26-becf-d5e363592db4.json and https://artists.proofprofile.net/proofs/artist/fb1f24c0-09c0-4d26-becf-d5e363592db4.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 0xcb08fa66024319a78af1154b6e439b8429def173d5ec273a80bb7de4d955cc45. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKPL1977434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629854d73196ae2bcf85642dd056afd086719910d34f08cf0dacde5c65a7203e. 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/GBKPL1977436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58dd93681aed5602437667fe417db84b5083ab0ab8dd0fbb5e26d38225fdd47d. 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/GBKPL1977426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d93a6d486861467477f66f65d3b233d097ea51a21f2a08c93f3389cb74fb3a5. 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/GBKPL1832854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaedb79e38bb87b687dd4d93b6163887010973b632e6bad31bfa9fdd1052d3a9c. 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/GBKPL1977430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354993d356df4b5495a12c66b49bb21bae9a73c4a540dbaee673a4069aa1d41f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKPL1951528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39bec42b7ad9eaf25eb6b72e421681eb7103d1125ddf93850159679635bdc2cb. 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/GBKPL1977435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ce348c3082e44357eeed42045f07436176c2af0ee748f064b7f2d7236e9799. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKPL1977427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4750c0fc518869ba159684f9d056a8b9636b900ea7c6cb62140981bdd08e9735. 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/GBKPL1977429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987b0d2a796eb343f2ed9780e2612b8cf10e901781ba37a3a55421491473f44c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKPL1977428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9088f30553ec3cb3662318f8bcd639940ba801e7fdbf461c527c21250b3ce4a. 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/GBKPL1977431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe332612003815afdf89acbdfe68920f50d9f6d229ef3688c6ff20cef997ea402. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKPL1977424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c432d7f2b990e92e6eba2300f41b41930937e7006eeb9a350ca4321cfbb36f2. 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/GBKPL1939759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ec41eacd14cd60eb2c46f08b3198b6740a6b82c21e714e8eb02cd1e498789d. 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/GBKPL1977433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19576e792541846a9f7d3f865a1e7dd5fa8cb7522e1b8fefcd18ef8b9b389629. 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/GBKPL1977425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeae138598b1212dd107e5ac43360831f0a101bf6077ca0023925be85c3e59c7. 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/FR2X42411237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896f86367dc4bc2488105f8653c6a59f4ab6c31c3ec34f5a76dbd15016cb87c3. 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/FR10S2432427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e68ccc7078643379eca0c62e9ce1c7d8e8e6037910560196fc8fece22efe51. 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/FR10S2432428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adcd61e2b76a8ca32abda7cdb7eb41506d2ade379af2bb5ffe9219a2ccda64a. 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/UKRVG2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb7b3df040cd2483d0a9750bc75392eefb90098b67fc97174f14697584208a1. 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/FRX872365282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e24d8a6a67c3736b25aa0787aaabbe1fa5b47416be72ead90d5f3415294a047. 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/QM4TX2339955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea89cf280a70d51455ae6c266ffd347ded98723e2bf51d363dd0a259f8d888cb. 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/US5ED2202343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c17e6993ed31d5f142a54e75fcca1cfb0cde4916cf345d66201821a17ee4e4d. 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/GBLFP2244927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1645db81b02cb9d03b379af35b5e426968d93a53ae45262ad200a9ad581d608a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRX452170571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab98a74bdc6c3bbed08afdf008c5af5a736ebb17f13190358b6a9c54fb7917e2. 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/FRX452170572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe064294ae578efc78f219f4da3e5cec3b5c02e91f825827e23a1571b8ede15be. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRX452126781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143b410c7655f055ea4573c6f5e50eb0d9d05758ca0b6e2dfe0d4f56ceba578e. 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/GBLFP2043035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b3ec9ca2ff8104e1c577390cdca2fbdf60fae6f59c263f0e09443fb346f33a. 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/DEGC62002358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55845e136eb75b6df8221fb1faeea4e93fc6c3dd5c703f6308be0616fdfecb19. 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/UKXT72000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cbd4dabeafc8b5d20cd4a85f155be036fd51d91bc153f4c40e7cbd1d003975. 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/GBKPL1970835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575f6d8209d000fd45993026ae41bade6f2c9202ae6e3b46ad7828584e65bd38. 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/GBLFP1749744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fa7206e186a50c7f4418276116defe35c9d6e64f6baf96744c5cce91e1994f. 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/GB6ZW2100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143b410c7655f055ea4573c6f5e50eb0d9d05758ca0b6e2dfe0d4f56ceba578e. 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/GBLFP2043035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4458497a787678f6a9b78d38023d370f8be233333f673b66b4595c986bc4ef6. 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/UKJLR1700319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf995aa52a9881bf026c099142a9123c6973c247d662fecfe03a30f4417b2d45e. 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/GB6ZW2000172.