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 0xe4929407b4beb36d482ee92b1aeb784240fb2cc17d79e85c33d716eb68e5313a. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4d63ddb9-1240-4c82-a2e3-0a041d25386b.json and https://artists.proofprofile.net/proofs/artist/4d63ddb9-1240-4c82-a2e3-0a041d25386b.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 0xda08c3690b22194150b44a87ad7a75838d8b9e4cfc2a4eaef1126daec25d5ffe. 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/USFVZ2390999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99d752bef0fd03a6ae4366b7beb5efabd1cf6fada807f5ae608e855eef44e71. 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/USFVZ2391000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80022725c1a786a54ab601c10813b9b96d805f513ab2bfe1a26c75b4726cc849. 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/USFVZ2391136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980c5a9bb550d63f779ecfd11c0ef80c4f8e2f6426fdfab66d607db3d81ed6d0. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USFVZ2391129.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1d46269dc09e9ff5734df2566bf2ac8e30148d6747a5d690bb5adb8961ea92. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USFVZ2391130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d4dd96768a8dbeee468de3e022f5cf1942a7d19d7d8cf3fca199cbc462024b. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USFVZ2391131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d379de7a9b123b74b131c7de5111fe118f3942e1aa860136f66eb620948f7e3. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USFVZ2391132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba16615b1a9e7890385288b63295b542b83bf442927b4ae501e3b67869950cd. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USFVZ2391133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd921c9ae6c8879f416b5897bd636c9bbd4023efec94ff9a83b2c0a23a7419c5. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USFVZ2391134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad55165118431f69e06e6765947970406bff91d9acc6d555a77096d2277fdaec. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USFVZ2391135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56570957908d06b07a2c3603016e52c22715eb4fcf966fafedf783ee72855f6. 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/SE6QE2206934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd22e4efb94f45d339209841d4da3ffda3d60206397376d68af4f9f8878134c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:01:57Z), 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/SE6QE2206935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4888323cd437dda7ee8e7e41a81835b08996d28d2b959b4e6a66307bfd820ba. 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/SE6QE2206938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5483cf2cd55dcdf4dc2d3dd49470d185e20252fb24ed99255bc314e594b9c3. 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/SE6QE2206939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469b5351c7579d69df8bcc0072dec6f5474dc99728ba0096b0db05a411d408d9. 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/SE6QE2206941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceec8d915a02ef95b9d22982df319faf63c3eaa56a6ac0eea6b52d422030f47f. 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/SE6QE2206942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238b6b17d37f1713a85f82120612ddd53e980efd2ff7fb815d4ad290cd501f49. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/SE6QE2206932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a613944332dfe1bb4ac52bd0efba3e0b7a4b4f799af2885966da384ff8b651. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/SE6QE2206933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ba9bd4005adb30e3d07bce39b2b97d4d640b078df441204936b7175cb02f93. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SE6QE2206936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0805982a4f4a5783b3d89a3feea17cda1e4b11e96e80901faedb8d81650e4f28. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/SE6QE2206937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab0878ddc6b8f8921f2bec8849a4afc899d2a7fee81b552fd842789ac1bb712. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/SE6QE2206940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf564c029248a23613d2106dc9e67f05f3f8e5a58929e47896300f98d6209d65. 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/SE6SA2093158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3de580d6fc457e5af280c68d75c11ba1ba73f3cf6c6341229fc7d0a5906d480. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/SE6SA2023356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70079d68d01242a8dc9861c64417b1e691eb35368bb6712a0b946637f0229a6. 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/SE6SA2069363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c20b09e71f559019fa56a194b216b26937e24f8187ce66930eecd0adcb9d95. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/SE6SA2093159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc161ab1bd23595ae553731664d833af69d9459e16d1b8bd098b63445b0de1d3d. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/SE6SA2093160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af8dc25bb6125e67cfab185e40782ac41a0f8267f8fb114f247d186e41cdcc5. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/SE6SA2093161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8836ea057dad4b87a27507a297f2905064b38500fab07f467f57008258506c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/SE6SA2093162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a771315d27d5e08138ecfdf7e633d47d3e5dfc561eba21a8646c22ffe4f4b0. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/SE6SA2093163.
I Feel Alone When I’m With You (Kyle Andrews Remix)