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 0x5d6411729a8106ad1c487b1e36d2a0be94c1f591400b808e591d15ec23726993. 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/dfb3fc5b-ebe7-4ff1-ade4-560cfa1727d3.json and https://artists.proofprofile.net/proofs/artist/dfb3fc5b-ebe7-4ff1-ade4-560cfa1727d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Out of the Wilderness / Well Well, Don't Worry 'Bout Me
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 0xe0b4505f1db6f33c9fd69db1af96ede5675910f136df92745afc58ec2a9ba6c2. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/US4GZ1704503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd47f21003ad6fcae880835b25a7d533fa855b48cd5eb8f7d57f0f87b83a2f09. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/US4GZ1704504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699a97e5d05f7865449675c89cb1088dc986f00a80403963e5fb9391ae07ad1f. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/US4GZ1704506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efcf759f335567ca658f7f64162b392590d11ccfb0c3f4cd3a94dd7efea5fca. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/US4GZ1704507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229647963babb1cc0fd0d261fadd4927bfe798329c1c13e55f5a8094b3125e3f. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/US4GZ1704509.
Hold on to God's Unchanging Hand / You've Got to Move
Out of the Wilderness (Live at the Apollo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb431abcafe61c223b0ceb09ec0cff4a3f1e62131bdb3b8ab204516c64ec0f8b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US4GZ1503617.
Daptone Records Singles Collection: Volume 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3feda5e083a791750506ab98a44643562de4d455bc7134e4dee1d02b23cbf28. 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/US4GZ1408402.