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 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 0x06dda5069ba18930cede33bf2f665e7ce5a3549ed6fc59688d143f5d5eeabffa. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/288b0a2c-46f1-4cf1-b50b-d7bf880031be.json and https://artists.proofprofile.net/proofs/artist/288b0a2c-46f1-4cf1-b50b-d7bf880031be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Not to turn over pages of eccentricity and chaos​.​.​.
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 0xcda3abaef2abeb2c3990a483ac4f4b577f3dd76e0c9b6e4f2c5a46dfead358b6. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/TWAE32302664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e547a01fef9f7fa69096d09f40b75754caf1848bafd524449a2a675db21a4e3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAIJ2429392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47fe914538e41ff935c1e05e7a38bc68d0974c1be6fac5ec01023c1fa739abd. 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/TWAE32500863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2967a331f2239c1000f449dd791fa2ea3cf3a72424adb4d3cf35621f769101. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TWAE32500864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd31035123d25b4bfd0cfe6f36251853ef16ad3428ef8b6083d3d472db17ecc7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TWAE32500865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9833041737f5a8ed940277193bd010b64e8b927333d5711409bc79631d57682. 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/TWAE32500866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f616b992deb9877a0f2e6b9ef40cbac66cbe592c52e4eba882fed6824d3e36. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/TWAE32500867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0856abfc6e674dfca7a88bf333f5760935055110fd28e281987140668193bd0. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/TWAE32500868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477218c3a3368bd7ace1d546fbe9507efbe5a3b3b08551dd0def5ef34f42fc2c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TWAE32500869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb896fbc0c5520cd458dc4cdba50344a1223cfdd01cabe89d28a65da12f455386. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPV502500100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b5ea99eb025e5c6614fd16f6263620b1925dce42736e1a375e10b49acc410c. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JPV502500155.
話が尽きてないから今向かってます
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f311241781ccd500b624b8d8d38cb693e3021b2193e98aaa656ce7d96804487. 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/TCAJR2552780.