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 0x7375c0161f63027a382a918d8add22793cc2d0a90411875d9b58d7e25e3b81f4. 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/953a1d27-93ee-473a-8270-c2256bbae9f2.json and https://artists.proofprofile.net/proofs/artist/953a1d27-93ee-473a-8270-c2256bbae9f2.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 0xaa8d47cabc53a20e7113b5318bbcc4c8e2c909a7b8a500772accbb114188cacb. 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/QZGLM2481439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda42604a000dba13fde8030d4e0728589d3bf012f415c1bbf23960342ba18f7. 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/SE6TI2388972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb837a409da35e67a84ebebc0cc1df5a771b77a085cd84982a09e0c992fa57dea. 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/PYC842302334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abab5de3f3899e2f53f683a773522badfdd41d4f7c75b4f9686553de936f9ab. 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/PYC842410094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2824fa2ba95b0aeb0da708fd1620307cc372ccbf18f12030ba68acf48f713dc. 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/PYC842410095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7f2b6b875e8ecbe7ee2662d646c3bf5004c2bba7d742f8640344f1e9ddcd0f. 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/PYC842410096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecff4e650a70b1229df53dd00cf5b9a500903580e9818762b03e7fd58c0dc441. 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/PYC842407484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40fe2120dd9fb91667eba4679197fbde3f07272187d704a8808c251b4dbb8b38. 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/QZTV32486877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703e8348f1dc89f69ddad2c9bbd568d303004f0e741403accf88c038e54afcac. 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/SE5752409872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95f9a810a255add6697cacc1c74ae4cc9d2bf2e3e0aa8ffac4d496d72c14f8a. 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/SE6I32497242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9db184729c2c3852a7932ae92e0b9b0f9bd9bf893c9abebf09b9fc885564c50. 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/SE6XX2350829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe0b2a80b76a0cb9197e2e117b5751fa3dda47a2f8c8039e2faed04ca7274de. 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/SE6A92300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f89b2042fa6d0a7d32d21f50e4ff85cbf8172926cea7cfc62ee1bfd799e6ed. 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/SE6QE2379924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26cb604ec6599ead3908988ef6fa93c7dd19951d456d5d54c07c247b05fb5ed. 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/QMDA62350381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0962d9651dc59a35f2938484e64f7c991d0e98ea97bb4dae0e1acc9b5f08b1c3. 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/SE6QE2344266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ab6e1257cb8e6aad67e81b45aa3a8ec8676d145a29c4eca94d96963a148add. 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/PYC842500486.
Pesau (feat. Tebaan, Gtritons, Henny & LOK.O)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359c2715e98856482f44a32a0f2ec7ed72889e0dea90a07096aaec6957f849b1. 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/PYC842420169.
Te Paso a Buscar (feat. JS Mejix, C.O.C SB, Tebaan & SleepBye)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd58eb2cca274367fc2c9e8c582daefebe83e3fae31087d0007a9b49e426d989. 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/PYC842420170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63c0324304195e79439af811e8310823213250156b8f36f81be3c1eddd41bed. 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/PYC842420171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6618370e3d2fdc5c5aa245aedcad3ae49873a0fe914f801d5e2347eeff43d04e. 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/GBWUL2571618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6263640ec5e1b553fc327cff1f1c9296e350e0faf61fe9b0f46d1bd16db2c7cb. 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/QZWV32467531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4b34639df0755b5cbaea4025409ef80e430102469681dfcc3985264e873a0b. 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/QZWV32402355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51e34fef47b05521ce471402df1f9ae48c3a9b3f04a55391f245301370deb1a. 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/AR5UH2400812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd399467a87c48a4525185d312992aedfbb53acb05e3e941dca4a99608f6a3926. 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/QT3F22431138.