1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x64b50748ffb9eb3805bd300d4b213cac8fe3d0c716360a3e84b0c20835c4ab60. 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/4ca67cf0-6ae3-4bb9-83a8-11a4eff046a7.json and https://artists.proofprofile.net/proofs/artist/4ca67cf0-6ae3-4bb9-83a8-11a4eff046a7.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 → block OTSBitcoinBlock must exist at that height 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 0x80db6d1d187cfe0223f4c1da4e8e10383596af9f52109c7fde95e98963cc0c08. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HRA041477903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0b2dfef3868f8e5bfb1360884d27d14e4798c40c9dd6919cc62aaff2fbc03c. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/HRA041684220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb3a78299951cab716c2023e5fb0847621faf178d7dbec50f9595cc8c24e76b. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/HRA041684187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab37f7e4d6f5c612fd9e14192ccff98526049ac3cc4985f17a82c22c6acfc67. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:58:04Z), 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/HRA041684231.
Good Song About Good Stuff Happening Just Around the Corner
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4faa710791677cf1beae6e66f2bf88d1eb09e3d9b690345c444e73aed48508. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR2X42104805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0858a4e9b495794b665a54ad9bb59f094cce34ffdbc054dc7abfb324d8416238. Chain 2 (Bitcoin): anchored in block 957625 (2026-07-11T23:15:09Z), 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/FRX202303038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9b1c50c746a09bf2a12e188d87b40ae290a8c620c511941772ee8750fd0a4c. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:22:46Z), 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/FRX202303043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a3c2e9c18376d5676536d355bcdef2d603932b75a7fdc64fd1be031adf9e37. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HRA041478289.