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 0x2386a4572f1048b387ff6c8787f1182eff180dd2009076b7eba1a1c86bf314c6. 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/0aadf6cc-8ad8-4647-a830-0e4318af731f.json and https://artists.proofprofile.net/proofs/artist/0aadf6cc-8ad8-4647-a830-0e4318af731f.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 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 0x41a59c1cb74eda9851f4a175746aa3eb27242d1c3a8f967ad24a9fd19f0a09bb. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/AUXN22034328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ec5d68609a541a0d3ad0869a46dce85c812db0b42d7aee4053aadffec07aae. 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/AUXN22138895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9456b2134a32a15b9b551274cf2951b77e536e665ea9f07399a5d1c0a55852f. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/AUXN22146849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68808434cbe8a65fdc3c06dd1b317181d609cbc89c66ab2965c3ebed4a39395e. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/AUXN22181593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4468c4c6f8f50949447fb7ba2f473c84ac211e2c332d19c8602351b45302908e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AUXN22181596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4157dec1cf7eed036ddc07094955f0fc7c8c97b9dc7c705570bdb925e7b364a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/AUXN22181597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fccdc02dc081e4a0763209e880a06d43b34787309c909fe0e71146b3e9b15b. 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/AUXN22181600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1097e0d94e4a712524ad576aea7a8228ffebe3f9963d6ec5d3ee0fc9fe2001e1. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/AUXN22181601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c13c0b5f0aec3cd10e0e851e8e43e51c65f61e27ea2e27797987337080fd19. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/AUXN22181603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1a6cb1d605f3ab243c6769bde3c1d6ff284e4743e44cdd3e69fdc53f9bc902. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/AUXN22181604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5187c99ef7e8f344688cea2d61f5986efe3071ef30082b3873ba5888490be321. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/AUXN22181609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664b89ea6af1db83d71dc313171fa49d58cec1fb863b5f72ff78c26c209b79f7. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/AUXN22181611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bff7012fec612d7054b7a3a2c0607dd5bf0bab5262bca4d2d6c06fecd84e26. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/AUXN22159587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7bc5e1358f5a149b4ae19103197e6bdb04ab8310bb7c4453bcc83d7f7e5b5a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AUXN22159591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708d1976774c0b7403999c843c5ae408635cc6c42e9218ee677c3af133ff96ed. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/AUXN22159596.
Acinus / Freaque Out / Melon / Polydimensional
More Loud / Move It Baby / Music Survives
Gisante / Give Me Fever / How Old Are You
Indipendent Men / Living in Bhangra / My Fun
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397ae664445564ecd0f92e89996f87384c30045eb124e9733dca65a84f5030ca. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/ESA012264439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8cd91638000a3071df8b31724493764d27c0e87eb6e50c5194a2fb5d129de8. 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/ESA012264442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f8fd553f08eb5b56c4a69bf4a4193bf575f1ef30614f98272e812102a207ff. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/ESA012264446.