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 0xbac686d4fc5f5dbc81bba30b029774c8c8715e1d6f9e083b1a39f249a0523b38. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27345ee9-8cf6-4457-9085-3b97832be7b6.json and https://artists.proofprofile.net/proofs/artist/27345ee9-8cf6-4457-9085-3b97832be7b6.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 0x5dbdc9fd2693caf42f1948ac265c39bf46715f4d36fc853cd2c452e3aafba23f. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:06:24Z), 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/QZTAW2235624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78508467a9c41f6bcab51b2f9ebf6376655b6d80b2d401fff8a5ffd52ccb8f3. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/QZFYY2341695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d85cc06db84a2d5b74e592eb5468508282405c73b5fc658f62f086782ccbf2. 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/QZHN42363993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef9a7763a270a929720b0f5a7ffc4a4303826019d381d3958ca819094c0abe9. 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/QZHNA2319214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cbd2d7d7f6726e5c43966a6964533106344e4afa8a9b256cdb105e81fb6d43. 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/QZK6Q2335398.
Javi Turnt x Lil zavy 50 - Throwed Off Opps
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc948d4d6e86ea979484a51cd0d032c8fa74c19ab14d9a7770d584b9893e4cc30. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZK6H2304514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3e6abe2435962cb8e26333263828b44094793ba6dd0e27e8bfb3d89a4350d6. 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/QZK6H2378388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1f02d8af4899da2fb2abe076328a3d3afc5cbd7f1dbe660954b7bfe97fb629. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZNWR2399836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a974e742b9f4f00fa3185eaeab08015debe2ba14c637b231edd53b0cafee01. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:24:11Z), 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/QZNWS2313442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0bde79f6973d275a455f513ecb99a6233a9494c05d00cdc238aaf219eab3fbb. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:44:33Z), 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/QZRP52390114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6298f47d8e9b92ac2617a0e6d7b32c6925d73aedc1a612f60f029acf6ffdc579. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/QZTB52337373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58a4bc40d8fe742e24ec04fc8fc8f913738aa1f11ca02c4b934d12254615177. 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/QZTBF2355303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855607af437158e7c30d7c487c6c88d5d9cfd43fb82b7645fa9c92b1ee8b7a3b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:11:43Z), 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/QZMEM2420576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc63e2b1dcc344f713975439f0f01753a5320e19f0e095ff3fc28cd0a2323e62. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:15:50Z), 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/QZWFL2453515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb77847c882586936324a96543060110c6cbc72ca4dcf36540258dd5e6b2cab1. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:51:36Z), 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/QZDA72567956.