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 0x59d76d75a51f6830b31a7231fa7b911be216e4877e8522db9297a0c42acb2859. 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/3c79febe-ac47-4317-ad30-3a29a0a9c222.json and https://artists.proofprofile.net/proofs/artist/3c79febe-ac47-4317-ad30-3a29a0a9c222.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Party Dances/Mini Disco The Greatest Holiday Album Ever!
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 0x34f5e314d60ed5f01168b10cbe5bcbcd676d1cefff0b10bf013e45b364e5ca14. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USJ3V1064191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1343a26872aa5d269321e9df6cee76d6183fe40ca4e1edb715743fa113a4824. 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/USJ3V1064193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0f610c3d9358c85ee94a6bf38cf226dbeb54a3af73011ed78bf33deb1cb317. 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/USJ3V1064197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc665b9f902c19b74f7773c41234144ce01556628e20b249308d923b119183468. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/USJ3V1064199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3d7823ff45e82f85fa9bb889b64663a881b43eb5cc5631193281f9fe0cf2a7. 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/USJ3V1158655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6347daf241e9e23dfd5ff7f469d39335ca897b7dab6135f6f29cb5b3248f3f3e. 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/USJ3V1158670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1cd9fc2c60e9e2f45a65bc66a3916066d899fba77dab33c08b0e01deae8231. 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/USJ3V1160796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e07218cda90d9d2ede4f53a4ae437a07dc217959b41063dd9c5e0e7afe187a9. 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/USJ3V1187504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33526dc460e0edfaed31a74c209412766330f0fe58d1c37d404ddeccc388d81. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/USJ3V1226177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c768d2c69a770166e7f8cd9793c97e3586e054aaf66ec2c9b76f7d5a232fe83. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USJ3V1226190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc04093f62137fc7af05fddfd4167aa8de98db35cf6c1f579847ae3fc3fbf2e. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:23:14Z), 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/USJ3V1820765.
We're Having a Gang Bang (Rita, Sue & Bob Too Style)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568a02a648f5d15da9c1507eced7546d5920bd54bd776deec99d2d8e7a83c75e. 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/USJ3V2179341.