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 0x0e4eb5e7688c5d820ea9ba77db7650f7aaed0f8a0aebde4e91d3471fee015ef8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20dcd8b8-87f3-4114-aac5-23760b829518.json and https://artists.proofprofile.net/proofs/artist/20dcd8b8-87f3-4114-aac5-23760b829518.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Strong Like a Rolling Thunder (Live Acoustic)
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 0x3d86a66ee72a875127910dc7e26bb7bc012a6bbb19f6c7c350693e11ff9ef35a. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:20:01Z), 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/QZGXC2000121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371db8071dc4a9843fa0943e4b5f3357acd030f72b5fc367123667873abe208c. 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/QZGXC2100312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8643fc16cbaf865249b285bf271eb64007c1f1e913a6f68380693825e0d9308b. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZGXC2200083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dbd4d0cf567c7490a01f1acb4c4bc18839ff4cd559fa83f786ddf0b2c7d8aa6. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZGXC2200536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fd008c6303567b84e6e399ccda5f5f3767d501ca88b468aafaba0b6f5549cb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZGXC2200539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4832c560d604e39a135713bc5781eb794b3df3856329e4d8932e95a14975d514. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZGXC2400903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97e3ad084c8aac63b753f0d61b0f5ba8d48b0ff334a16ee054066e2f1736e09. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZGXC2400910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0521c827d3488ff3a671f3f58242e54e947e2e4eb9bade24464a17eaf5470121. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZGXC2400912.
Eagle Brook Music Christmas, Vol. 2 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf486a7d36543b6d7f3f22473d5f5999697e8ce9c4cbe0cbb87255db844faf798. 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/QZGXC2401377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e89ad3430bc5f8619c3b4296d23aa1f1b7997a9f0dd994e928e58dda763e237. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZGXC2401378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37fe160e58045f4eafb01691a259301700466c6f7682d6ff64a1198a82acfcd. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZGXC2401380.
Joy To The World (Joyful, Joyful) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d8e7d085129dea36b68a2e39b3c2170c48eadf1ee834ca5e03f87af3c9e361. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T06:38:21Z), 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/QZGXC2501102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05adbf156d139567b2f58006bde46eed0b7aa5bed75266d91429c35eee77597b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USM1C2100120.