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 0x1b0903ff5ca5d3ced38f46fab1fcb7a8491f923766cbd4c98b22ba273acb83e7. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/12771bf6-33d0-4b28-b391-fe60d70192c8.json and https://artists.proofprofile.net/proofs/artist/12771bf6-33d0-4b28-b391-fe60d70192c8.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 0x8e833e58259e2b57e617c780b4cb7d791b110f60606d3d8d90786ce1b38310f9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCADA1723952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de5276deb9c7817a324d8b68590e099ea2ff550b00949481e5585f458ee1b1c. 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/TCADE1718024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329945e344a357345ffb0315c1df2284c79ee6d3877eb923fdfb2c81d2ff6671. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:36:07Z), 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/TCADG1790138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef5e18d6a5ecdb36af61eb0f98707b54eb07003d80071db29cb181ed8da018f. 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/TCADG1790142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e160315f0967d20341bfab705bcf3d15543d54f47c55ec9825dfaa8bc1613fa. 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/TCADG1790143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fed76e48523590135809080a0fea0277f29db1dd261e015873ceb6854aee966. 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/TCADG1790145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5175ea4b6d0e5f7ccedaf5d88dab48f43a11cb1c04c8659fe92a350a3ec1b79d. 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/TCADG1790146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68eac7f801abd642a51f1ca47e2610aea840db9ab91bb418787fbdd2df9540a4. 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/QZAMM1727137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb260864fccf92a99f9971c54a18b7fbda1247e077cfec2a685be8f171d6a3e78. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCADZ1868793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb1a3e5955f159fae7da34e743b431319b91782dc78651df36b69905294c296. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:03:24Z), 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/TCAEB1910742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe4eb1259a8c124d66e6ff396a1c18566927dab90d8cd3595dc588313d8ae25. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCAEB1910746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f20a42795c90652c00b3e858a283cf4ef58868e38e912e773a5b6285e1cb2e3. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:05:01Z), 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/TCAEB1910748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22d67950ab9edbc2602db202fd6ccc1bc94bd65a714c5ed2fd93815220a64c4. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/TCAEB1910750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52db1ed1d2acfca877411d0b847a319038842a3f646629b94dddc9ae59368b3. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TCAEB1910754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec31e57ef3c8b607370b215d1c8ddf767995178332789d8f8b3861ff2f7278ec. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZAMM1755301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b4ccfee57a3e3d80980dacd63e04945d1dd437b9ae2c379addbe7248c9750e. 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/QZAMM1755302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93277ff865907cdd5f8297b195bc9e6053c15cbc84b3260af3fde93fd249d4b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZAMM1755303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4afb630a6317756afbf65425f4ac692df8111a0bcc2c1c371d51c3d3a7596a8. 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/QZAMM1755304.
Super Mario Sunshine (Lo-Fi Arrangement)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c8da2ec719e0a741bcf32b24e9206ad2c9f671fef5790a48de7558eb9d58fc. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCAGS2365466.