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 0xaa53aa4b24177056d0c78db606481ee1c1aab1067b81ed7dec12a268cb8928b6. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f05c0ac-6f10-4df0-a37e-8c56a59bb011.json and https://artists.proofprofile.net/proofs/artist/8f05c0ac-6f10-4df0-a37e-8c56a59bb011.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 0x047a6dc6cf0cc13e11e06a00f8ea33ae70e98b82b9ad2b5cf3c0bf8cbc9e8775. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR33T2165601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267336ed9b060f5b98a4d60693f978f3c149d5ea9a9b3972d5e758553bcd7aec. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR33T2165606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb059cfd732a0456043fc162a1d6a73d0f7e3f7a32c3060aa6e194ce78aae3d3d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR33T2165607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea430643fbdcc84251cae4b5ce518fad669b7c95dbd474172a05e5fca9af2d2. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T17:04:15Z), 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/FR33T2165608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e847ff1342043849f47d0893c23d58b7f3cc2e5b2e53f013fa60975c92a68d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR33T2165610.
To Ride, Shoot Sperm and Drink the Juice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6d89ab73abedcc7b066c635417d80ea11d1003df1b125b01548362c5cc6e65. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR33T2165611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3ab354e969bdaf1dfda1e6fb37ae5b3b49b06ae2cf0ef1c42b1d1c54bb305e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR33T2165614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae111750ac3cfc2b9359881b6aabcbaaf70b1285e8b4f960186d02390aadbe5f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CAGOO2112558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809a17ee218b10a45410fb9a084f90f360f85e11b7acd149f6513bc3acb3bcd8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CAGOO2112536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2f2edbec2fa5bee13e0cc9581eff0f087e8b54350f9084a1501933462aaa0c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CAGOO2112537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b110f40cc40d82fbc7d81a9853e6f7eca5e3063c4e50602e1a83dd9a984445. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CAGOO2112539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191a2ab7bb0e8b4a066545b918e73cf2b909f58652cb620ddbe72ab8cef08c70. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CAGOO2112540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f66380695665e7b3971d8776309c2344214c1dfbcd2732fa544a159f233a766. Chain 2 (Bitcoin): anchored in block 957253 (2026-07-09T03:08:40Z), 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/CAGOO2112544.
March of the Gronibard (Intro) / Je te Déchire L'Anus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe894d0dcf2b9c0164de8cae794491eb45ffd994f077dc270260eb515c9f7b8d3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CAHQJ1947957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27abcd200d15f5c75aa5a7be03eb0f7bfa123af8f56d8aa4ca07f564840969b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CAHQJ1947958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56908fc0e0e3803dfbbb319904bf0ca44913e5baba6a02b5ee46d0e0eb5f3257. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CAHQJ1954991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047a6dc6cf0cc13e11e06a00f8ea33ae70e98b82b9ad2b5cf3c0bf8cbc9e8775. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T08:53:21Z), 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/FR33T2165601.