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 0x1c3a5e7f87dd8504f862bca9162039f6c97965b0157bb8810e7bfeb5d636e080. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad212e9d-2c5c-49b9-b1ed-838e222387fb.json and https://artists.proofprofile.net/proofs/artist/ad212e9d-2c5c-49b9-b1ed-838e222387fb.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 0xbce77b462093dc6b66e90772183ef83366e193630f8752d91d0737bae9e65475. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USZXT2250226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55bf417de6ce8ee80c3476c4032c94118e0e6184de0674fce16681c7479cb41f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USZXT2350840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f0e10ae1a4429231281a15c6d53cc68c5049d624117da12f2dcdad104d005a. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:39:54Z), 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/DEG932303000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912810dd4bffe876d389ec5277fdc3932f12318eb442468aaf11781b6e5be926. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:41:54Z), 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/DEG932303006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7ecb6931f1bebfb9fbadb102e5bd9c00b3546bb53c5da6834e9c8106793d65. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:22:56Z), 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/COAB11900166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db77528193d0fcfa3ce49aa125f3ae6b8002654fd9a2d650167e1951e4805b7. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/GBK3W2503348.
i can’t remember the name of this, but that's ok
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db77528193d0fcfa3ce49aa125f3ae6b8002654fd9a2d650167e1951e4805b7. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/GBK3W2503348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd447bea2e30255d9da7853847a74fd9296496605b6b65c7eeca8ec1974782e. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/GBK3W2503351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2b403dc529d068aad8ad10e93856bd9904d45a27ccce96155453e9bf0ac7f7. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/GBK3W2503350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3781c2248be54e068c5563550d184a350832b030fb9a45a409339f00b5183212. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:37:00Z), 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/DEG932302863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18f2bfbd4dc5fd8cf74264de37f1ff540535a65494ab88bc56fb46eaeee46cd. 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/DEG932300824.