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 0x1ac0ca20f852e1309a25ba7a2cdf706375719aff2b7c326aaf8ddf9ff7747738. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b705ebf5-6995-4cf7-9df5-0b9f5e6fb694.json and https://artists.proofprofile.net/proofs/artist/b705ebf5-6995-4cf7-9df5-0b9f5e6fb694.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Ocean (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
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 0x42ffe752fa3f58fb751b632d32be8f373b5bbdf39044a5ca246bec7d61a0e6c5. 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/QZFYY2216488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafc34bbfd03f372dec547bc5c3f4a8c208ff14bafe2b2c2cba8848863e8596a. 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/TCAFM2159863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7199eba11b9d49d37844c9f824420d37b97f92bcc0262ea332c3b92cc3a4607. 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/QM42K2162817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479e5fbec8c3e53508b9bee806a8a0d309feac051475b11748c3a48b0fe6457b. 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/QZMHN2049325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1911089ac0c4e4ce5704a301d06ba8b16bca5e05447430f998ca09a0d564f1e3. 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/QM42K2032960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf883d8c4dcad992e1ed199de5b44a1792b984e09e9b4a65ff1706cefe3b197ff. 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/ESA011945047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15216c3d2e763d6506b81bfa846153fb3d1246f09b1c6bf9a5fbd2c80461c4c. 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/QM24S1904687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9a5b7ad8f992fa488bf7d3fc9654080781e3e71f29764b082a1dcada7c8ae8. 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/QM24S1902472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ad884c9f9aae4784998a86f2487b79b566afcd2e8bf64250a668ce966502a8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCADY1880315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f46ae1dc1db3f5090237ed6461b17c5a3c377e5229ece6562d04e8468c1e13. 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/QM24S1842189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0610b36e1e5af78a1fbfad3756eec6af69bb1b6cb1ee99baf5d6e1086490baa5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCADX1826396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430b9f57dc73f3054b685109937dff22a9904059f5252b984a1a7f514193f16b. 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/TCADW1863818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7045c3b8eca44dc128a6818a10c26a821656d86ee42193d19fb3d122f44a84. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCADW1863755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe827330cfb7c67e3179ec16eb28de15a303348f079f0109ef8a889ec7d3aadc1. 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/QM24S2106404.