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 0xe08d46692edab7d81c580a93642e2e78e442812e1f88e570c21cd7e89614ad44. 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/b7013c0f-82df-4b24-96c4-eaaa014f53a7.json and https://artists.proofprofile.net/proofs/artist/b7013c0f-82df-4b24-96c4-eaaa014f53a7.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 0xbfc4bd59efdad8907a9e12d3dcb05f984bd1e13aaca9004326623ce773a993cf. Chain 2 (Bitcoin): anchored in block 957565 (2026-07-11T12:18:39Z), 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/QZK6Q1968457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ce53006bcc6162096be17214d9289103b24c81bd52ee3abb95c2052ee3c54c. Chain 2 (Bitcoin): anchored in block 957565 (2026-07-11T12:18:39Z), 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/QZK6Q1968458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829c3fe1fa63c8be02adcbe710ac0b1f83501c77dd847221ab74f6335b961346. 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/QZK6Q1968459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f88cd1764aae1adbaf87f3915c802277c75cf62a80d3faeb282c52f9533d6d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:09:20Z), 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/QZK6Q1968460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3d61ef8975ca9e8c083cfee50d8bc5d21bfa9fad3a09d52a2668f95d2e1227. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZDA52029476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb107007b0aa6969bbe0d9f1a0e0883cbeb53910f4eeb63d9d49c0b8f1dcd9c29. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:59:59Z), 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/QZ5FN2079579.
WERUNWILD (Cypher) [feat. Syke, RKTEQ, Kregga, Winston Lee, $aucepekt, Dave Dela Cruz, Kiel & Saad Rhy]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdad1b20a615fa6ea5c407b2c85c09743f14f7d82964e4ac84cffbdd7b2e868. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZK6Q2339294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e984bed98312daaffca8ad4f7afbc3e6394db71d142cf35ae6c76a3abdbaa4a. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/QZWFN2335099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a0b50110bb54c45d02002090a65ad6737ca9eb48533bc6fb2eda152f8b0297. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:58:39Z), 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/QZWFN2335100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ac089fa2529e639f489ffc97c178ab19bd63554885f8d3b94eb397f2a8745b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZWFN2335101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ad6835cabccad1fb4213312a27f8c0d70e512ccaa9f0aaf3650e577fb9aaad. 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/QZWFN2335102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ebb113fbac3697d65e61c62fcea9e8f056bb31f4c4fa209ece097489215914. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:42:33Z), 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/QZWFN2335103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b54ba00d76edb50673c1fca8ddad6dbdb08509fad0f4e6f04cd35c7adfefb5c. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/QZWFN2335104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe89c5921377ef461120a2b75b8bf1fc702c13ce6b44ac2abdbdab031c589e3c. 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/QZWFN2335105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc7bb95c259193fa85aded74f844cd013773d430ce0c215a6cefe8dc013e9a8. 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/QZWFN2335106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebcdd48c317321e3d9b8599cd8ab4228e4082889f87ccd10cb384889b89db9e2. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:54:37Z), 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/QZWFN2335107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70c2a5f0693199ff1643a42cbdd56065dede02e8005565387c26517e6dd3f3b. 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/QZWFN2335111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c30594bf7b5428bb951f783b9a495d2d97e04a0fcc29c03727bf6e43836348. 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/QZWFN2335113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f089e61dbcebaebe0bf85fc2ddd3ee62d7e1ac29c7e2d3780d30a673df6f61. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:45:44Z), 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/QZTAT2468799.