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 0x1db0f8b446984bb8140b66f7ba46dc9d24ad2b2be4e4b114083eef81428f5dae. 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/c32e39df-a1bd-43e3-9e3c-01d8e3f6697e.json and https://artists.proofprofile.net/proofs/artist/c32e39df-a1bd-43e3-9e3c-01d8e3f6697e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
When I Grow Up (High Dynamic Range Version)
Hear Me Out (High Dynamic Range Version)
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 0xaa0516111ecaf829343aa67fbca2bfe884a2d776b7702b4f7b77a058b4688282. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/GX5MX2249457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc731421500c6494dc6450e5cc8d2d53a3d64ef85388bf0b8551cb0b318683ceb. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GX5MY2227066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd017e0444858dac9603bf5a235527a89298967567bcf125119028663afb97e5. 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/GBSMU0112635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793e1e112fc9b155fb697a355e9aad1e01f4d1745793146d0801ec8145a3d0e6. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBSMU0113228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b652a7b111a2297a3ecf9649040b7cf1417689076bba84ce54eb52899151a9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBSMU0125453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4901775ac32032c7a70e0c501eedc7012bbfc3ea63978397fe15b213d9bb1b13. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/GBSMU0125457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe32063835d2df94c30679b533ce862b645a5d16a1d0ac7c56d22da790bdb33b. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/GBSMU0128146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77dcd603446bdf9590695cd3dfe8ff7d944e8076029764a5c65b0a1b80e211e1. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBSMU0128152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb6cac2f0b202da0e816e3f3995c18214daa96b8014bd9119631988704f089e. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/QZS7J2477705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd31e980a74b8273e920bc439dcd56006a51663f7b940d488750e1fb8338a829. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZSYP2489282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd31e980a74b8273e920bc439dcd56006a51663f7b940d488750e1fb8338a829. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZSYP2489282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5369194a15ec51b6a832cbeb16bfb733e43e42fa895c300772e3499371801017. 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/QZSYP2589758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fc1e363fa0184b7260468d51439c475abc5285528be64261c269226fa33932. 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/QZS7J2589212.