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 0xdc8338454febd2dad7ddb5a62e3ae18e0288f4b802a64bca6acfe7f63572a91c. 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/ded62544-e4c7-4aa0-a299-79c5c4a67bdf.json and https://artists.proofprofile.net/proofs/artist/ded62544-e4c7-4aa0-a299-79c5c4a67bdf.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 0x2efef065344a0191394f708baf733b302687467ca8692bab485bac4cb3131c05. 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/GBEWA1300670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcba5911569b1bcbbde4314e5a4491a0ffac3d288de2938e045e344c228833d9. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBEWA0810340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b97219008e4b0acb7ad930b41cdc094ec7a3064774d92df4a4b26ddc06e899. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/GBEWA0810491.
Disco Belle (Original & Peter Martin Mixes)
A Sort Of Homecoming - Michael Cassette Remix (Mixed)
ALPHA 9 Presents: 20 Years Of Anjunabeats
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcce5276a3f4f218d264274bf0d5a27244be68edb0035fcb8650b2ac4ea69ec4. 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/GBEWA2100291.
A Sort Of Homecoming - ALPHA 9 Intro Mix (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166e9b4eeb2c37bfd35572b88889baff6291f9b3f0b23ac7765a85eae79b8ddb. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:58:20Z), 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/GBEWA2100290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202e36adb8302c9ac12ad6f63567cd638a7bc11760fad9df80e3e5fd7e8766f5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBEWA2100295.
A Sort Of Homecoming - Michael Cassette Remix (Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80361be4f999a3f7460209c56da6fdb6a89f0ce1e7b9f80ba48353b17b7b17ce. 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/GBEWA1908132.
Gabriel & Dresden Presents: 20 Years Of Anjunabeats
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80361be4f999a3f7460209c56da6fdb6a89f0ce1e7b9f80ba48353b17b7b17ce. 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/GBEWA1908132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ab524351604e7e658611247f07ed53863820692777786c2499537cdeff2fd5. 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/GBEWA1100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0751472385b1202fa76d9d7b64644ef3990bfca571cf49b99a6ca0b122204cde. 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/GBEWA1000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53543c2197079876692028fb829c76842f3f9bb806ebf7008d1b6afce3485d7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBEWA1000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80361be4f999a3f7460209c56da6fdb6a89f0ce1e7b9f80ba48353b17b7b17ce. 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/GBEWA1908132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7121d416cd5d35c294a474cbce69a381c53c00ce916cab15cc7cd122ea7a46. 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/USA2P1901129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d2abd3562ae64ec3aec5c121e99e00d02842666d152f93165054a9850577da. 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/GBEWA0810200.