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 0x30230d3c91dddc3ec2611813b21986d4b972c3484cb4bb252c10ce58d2621ca9. 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/e71bbd06-d02f-428d-8577-f476ae860d98.json and https://artists.proofprofile.net/proofs/artist/e71bbd06-d02f-428d-8577-f476ae860d98.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 0xde8a69bb0e0bd131b37e3fd574d2177b831a46715de1fdc767c3240de880508c. 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/JPB602402104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b940ca3f32d4d1ecc68bcd3c91e188bac68deb7c9c5cdf57e483b85ccfc031. 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/KSA012327711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae85409fdcc7a42099f533914c6791051a94aac11752bd8e152d5cf9b8b109e. 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/KSA012327712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d16ea4e10d08bf3b59f54e2b14955a857f86bcc50c66e4471f773593ce8aa8. 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/KSA012327713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8030dd66ba81305fe793a94c9f3e1c65ed74326e13d55a4c733eb0658047fcce. 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/KSA012327714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aff9bac6bf0f2fdc3f1420bbe1ca167b924ca3d008dd35ad208fa939657a401. 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/KSA012293895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617c8538712eee63bebf3b52b28d878d2680b87a1637053d22e2f2e91dd23c42. 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/KSA012273023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d39eea12bcfbd2831ec5c79dfdbe00f241b40f8a54c21c0913672bf14073f6b. 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/KSA012273024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ae24ab8bba285092be178428961bb9efee16b74bf719c286b0223cb008eb3e. 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/KSA012273025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6a6f0477ab5e1ebcc624bdc7115456f2491a10baeae2ff71f6d7a1bdc1c4df. 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/KRB472300240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2817575cdb3c866e47ed7ecb445a64d191a92f62f162199b76f75f96ea5ce19. 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/KRB472300241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a79201f107fa7b65e47ef0f940996e2f2e2e052156caeafd331f3185d665b51. 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/KRB472300242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a98c7896ed4549508590be2392bd61c950380083fbb915dcb291cb7176cbe5. 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/KRB472201968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c3b7380edeea63e15d36db36922a698ef686206ea6fcd266d0548c483810d9. 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/KRB472201969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f10fe32a9c9996a2ba12be3c19dbb7cbdfd9a908422391315d42a6fe117e52d. 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/KRB472201970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b251055a09ca868325868f6f1d8f9c05de8f66e6a07919eade7d5c8b83aeff. 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/QZNCB2184549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd1b5798d0c42712ee09eddcadcfff94838ce47e29176c6f27129ad58423f8b. 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/QZNCB2184550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ffeb111975f77c2e45c8d67f665fffecaaa42efcee0da6f588fc1d75539b53. 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/QZNCB2184551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4533464b687807af2d1749d766f1a6463429fb5c0e3fe679eab78c5f23af93d6. 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/QZNCB2184552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917328076a5f446b2ab67ab238bc7c0fdb9f1f154130622a2edeb237bb8045d2. 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/QZNCB2184553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a93b29adc18d4ffbb71e4cacdf3880cf1ac271d69f05c0657d607cfa054cea. 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/KSA012137268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1da847a2331cfd72581c8f86cbc96ccf489b84496161b537ea8a7c1e3366c4b. 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/KSA012137269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d2601dad702ee4edfbc9cfcd322bc2c1f8372b2295a6c91722f64981301650. 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/KSA012137270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe40de48d673583025baa1aafcd11e932c62ca6be29a59f297a72cc01b3735e. 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/KSA012137271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64842c04991d03a911caaa03019e716e6ff1988e9a61005998aced2757aa6adc. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/KSA012137272.