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 0x8fc677ad32d5bafe40a565bb3fa211c82755adf82d8a979411362c74a2859792. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5c52e855-394a-4b7f-abf5-0dca008c42fe.json and https://artists.proofprofile.net/proofs/artist/5c52e855-394a-4b7f-abf5-0dca008c42fe.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 0x452e6097be73f21e331d690117bbe06ee5c8b5254245c419872e5dd83d3cd638. 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/AUMEV2277458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1b3210fbe1fb8efeb79566bbf15198785d7747ba75e65b0ed9b3986fa70e14. 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/AUMEV2278479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37c0734c894830e2d2a88a3ed63669301131e53fff1a134ecbf985142b790ed. 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/AUMEV2278480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe156049d0d7206448fb85ff74ed446dd72ad6929a2d484c02a52024c9199ccab. 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/AUMEV2278482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceaee97f7b2d500dba619931951e10fbde4942dac529a037c0dab50b5dcad394. 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/AUMEV2288256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20545e04ea06b04f34c50542f451a31fad220ace1a9a9f0946b8134d953c4c9. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:00:20Z), 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/AUMEV2288258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1f3b8e61926e37ecaee5b9d4517604bab086826d7e6d1e8ad12496c3731661. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/AUMEV2288259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7774db9fd7632653478ea995d57d24a7b1ae878487ebfe2b7dfe3a39f18dcc7a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/AUMEV2288260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14aa4025360002a72cf5b761f7b0305c6a1684471282164ddb60ed7da004a13b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/AUMEV2288262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58395f77b895c4af84ad64af844a30b1a92650cb59b9e47614e6eeca3601dbc2. 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/AUMEV2288263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe31fc2fd57c9fb4bba2bbcaec1077d1d80fea9ad5fc058575fc8a497ab59236. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/AUMEV2288265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5fe4f298538ab9ce7901fc538e81d2631c20f88cc8f128d52bfbb2e560cc58. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AUMEV2288267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e9206b3c4b25a7e0078f079279ec5cbbb6e938e1ca50a98c618e5a74086723. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:20:26Z), 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/AUMEV2288268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00b4de3a0eb09ac196e9ac127a0700037a174a9fd157684164c4f2bd4bddbf0. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/AUMEV2288271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0146d94d9e0f3c1e9bd7537e33d257ae4e39962d1c9fd2c0e2270d62d2d442cc. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:07:59Z), 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/AUMEV2288272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e0c6c7f09b46d6c8c1c5ba981648e05f4fa3836c5d0a88ba5bd24d579553ae. 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/AUMEV2288273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca4eb9399eb615d90030dcf376780dc76e9eddd831b778359712b6c8987a0ea. 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/AUMEV2288275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624cebc7d78357bb4d70b98ed7966235742c91f67fed7512d2367747af0b2515. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/AUMEV2288276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5f340af14eacaf35cb96ce03fd6f2c10c6f7a32016d475aa1708ca0ea698ea. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/AUMEV2288423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fb9fa37202af40c89af65e53cc83e30f35da3a9993fa8379bdd0b2e63d2772. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/AUMEV2288424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411ad25e3d07f87201d24c3d4f631b33418c14281f81a6dbe000eac8bff789d8. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/AUMEV2288425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bfa6f655a4d32d83492bd2e4d9faaaca931402b72c19e208ed12251a071ddd. 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/QZK6H2488044.
Inner Depths: Music for Mindful Meditation