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 0x8abaf1af998a87d75df22552b0f11bf25120d73efcf81f60556c28df1f5b75f7. 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/7eeee5fa-f6d4-4d87-a074-254fd6c43349.json and https://artists.proofprofile.net/proofs/artist/7eeee5fa-f6d4-4d87-a074-254fd6c43349.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 0x9de8b5364911fa0eda40c828871be83115190ff40ca800684de62214a21b4c20. 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/JPU902305014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0989bf056784d1ccfc00340d16ccf22e8aa07562942d9ebd67c2fd1e97c79b. 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/JPU902202705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f74bc38ec7de261e6f929048be28c177839050f605411d61d552da4d82892d6. 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/JPU902400297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7e0957038da0951d91b4be0c7252026183e05f4f7b6d04bfde27efaf39e02d. 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/JPU902400701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0353d2cd770107cb8677905bce26ae61825c330fd8291b883a14841464ce89b6. 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/JPU902400703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c80d2ae247757fb805511a92650de2f6ca0b5cb36ddf5a8d192cb8169deca5. 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/JPU902301283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bcd5d0dbb50b69f205c5127a281216e5ed3194d61e0340d3fcdd9826052af0. 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/JPU902400702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f58462d04a845f3f247a448d35a5769a6796bde2f3a1fddf7602d2b4e8190c. 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/JPU902402464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de8b5364911fa0eda40c828871be83115190ff40ca800684de62214a21b4c20. 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/JPU902305014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf58d26bcf41a959f1ba0d9b39dc96e316c5ae845d674d360e77f3ea1404ee46. 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/JPU902302974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd705806b3106e5cd01d8fbab58f2513ec9fc67d4e89f697aa4922c1f71e731c6. 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/JPU902301566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c80d2ae247757fb805511a92650de2f6ca0b5cb36ddf5a8d192cb8169deca5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPU902301283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59455591a38dd3056e199c61a4b430dc92a2bd9c830abb868efd5e5f67b1b6a1. 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/JPU902203057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0989bf056784d1ccfc00340d16ccf22e8aa07562942d9ebd67c2fd1e97c79b. 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/JPU902202705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47fd9e45d7a70e2d50324df8541b9bd2126b234623df1ab1182e59e6b831d05. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCJPR2227115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670c53d7719a1b065598901b904dc2367a786ce6da4f8b49b4289acdce580a5a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCJPQ2153663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd13a809ab9ed2a1e02d922d49592ef7ae62c3b6b961f0f5eef60127ccd48eb. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCJPQ2114499.
SCHOOL'S OUT 2020 SPECIAL COMPILATION ALBUM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe883deda2f99e23cce30dbddcd4ce0be988fc0c8cec1a2bd722549cc1789e57. 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/JPU902501125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f06caaec906f09bdd0986bd68bd0afb0368c32a85554c165b9aa532c1cc15a. 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/JPU902404296.