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 0xa94ff92fe5bb279e54fcc2de1f74e676389df00f06e7a8e79b31556d4349843e. 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/9ee26d24-0411-4571-a16e-1208bfcd8cdb.json and https://artists.proofprofile.net/proofs/artist/9ee26d24-0411-4571-a16e-1208bfcd8cdb.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 0xc1abb2ed4126466db5df52c6a1c385babea65add6bc3ea502264e7a66bd0c7b5. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCADG1774906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eacdc29b9f446debf19b45c9a5bc5553433f04ff06c567d45d9bd5e95431acb. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:02:04Z), 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/GBLFP1811818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464e30b1e910f8365b4cf46caf8861059dcbb08acac80e581be7ad6f4b15fbe3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBKPL2001304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77f5baf94e31cacb19efe11f241053868cbb98313e8eed8f434eaf89ca1a589. 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/UK9AV2400223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ed716fb6897f5e689665671adbc364727b57208345f1ea85ba1cf3fb34bdfe. 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/UK9AV2400325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ef0b00a9aa5b31f83edcfaa4400133b8140cfed7b7b8772a5ccdd107fccce8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UK9AV2400646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ef7c242b358c901f9bde2a0955377a5ff9f70496c3465e2351e4a78c0e5142. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/UK9AV2400648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33155f2ea35b526b24bcddbb4b388596024681d0bd0d28d7b2e35d496680a0e7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/UK9AV2400649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6246bb97f6a7dcff981d119f400e13df95f72492e4b115819200359a31368dba. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:37:43Z), 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/UK9AV2400650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33433c43f4b615ebf278e0fec77bd31036ed9cd9f532b1612ff1116e674d5a5. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/UK9AV2400651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35311835ae91abf4c08e59b2219143b9c0138addecaf20ac7159bf27417386d3. Chain 2 (Bitcoin): anchored in block 957565 (2026-07-11T12:18:39Z), 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/UK9AV2400652.
Collective Body (Original Virtual Reality Experience Score)