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 0xd097710c29fd49c558382f6bb4abf13a5b49bac0900773dff52a56d440bcdd6e. 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/34d05c90-bfac-442b-9392-980288ae35d2.json and https://artists.proofprofile.net/proofs/artist/34d05c90-bfac-442b-9392-980288ae35d2.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 0x69035fba047b227c3eba44c23bdf5abb502a661b2daa16137bd50bcede6720b9. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:17:58Z), 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/QZES92185874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff92d683f6798bc0b4f063086a7ec910a3c8bb8e0759d3852a717cd2df35ff32. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZES92185877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3274d79a93ed228886f24072d3b22a0380878d06364e08e1a8077e2cb8f8762. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZK6K2182480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d33f3ce5cadc7b0774404b652dbaccea844da1d365a2910639867244978eda. 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/QZK6K2182484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52fa84eeb2379be0c862c2bbd027bb16485defa84926496d17acaa3569e2848. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZK6K2182485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e2c788e6d8a6339499370f6a21fa2ce43e714c54226bd530c29eb51907e28c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:15:12Z), 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/QZK6K2182486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe087cc9b71464d5e448f69ad36161977848a5f0f091b415e5e46b4bd30aa5cce. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:15:12Z), 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/QZK6K2182487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f115781f4400dcf332ac3b7bf9836f3bd7af39c58d3fb176975112c6a8b339. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/QZFZ62201684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48424be492720f36ca5481b03146e375e6bcd72f7c8252676ec98ec07871f724. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZFZ62201686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f88ab3cb5812fe8a7aee2c01ecd9fb6c3374a6eb75317d526c16dd731a15fc. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZFZ62201693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a3f620846b33323b2a5e25c03b211037019141fd5f0b5d7a7c160e0eeca76c. 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/QZFZ62201694.
Grab the Aesthetic by its Neck and Ring it Until it's Dead
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54bc442106f90942605677845535e090c78433696a782d284a4e6c2553ef6a5. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZPLR2226699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10119d149550e30ca36983db4a5aa74d04c69eac1b7bf11495c138da344fd21f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZPLR2226701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c03ca6bad7387caca2280ef6ba5220e69131bb65e6e963242e5f9811073eb16. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZPLR2226702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d905cb06acbe0bc48ce90d9ce3c06ab4955c46a139758f4473d03be9834221. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZPLR2226712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0db03309ccd70c8948626b398a72b5eca3d21eb2723691a985c49b55a964f48. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZPLR2226714.