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 0xda776747acf9c8d2f51db3180e6a94427a6db7219debfcc3d830640a0c758a1f. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8439b1d2-a3f7-4d90-aba2-17900d0b5fcb.json and https://artists.proofprofile.net/proofs/artist/8439b1d2-a3f7-4d90-aba2-17900d0b5fcb.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 0x753c15e0b66be8086a6cc706b940f08df6be6a4f73de4b1aec91a6db2ee4da2a. 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/GBKQU2453117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d47890f28dc2ce4ee2bbf9eb7eb436af4344793f1cfddf446cf6a9014662488. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBKQU2453118.
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 0xe40f92132eb4e460acfdd19c98c7f0c19db18cb7a5753d12592c2ade9e134194. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DGA092368775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9b8f79d40e6a18bd9a12f760c97b3ea9abd67736bde341a302d584380c3b39. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DGA052316354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0049782b2344926b7612934968f8642240a54c4e851ba7026dc7e756ab88b068. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/DGA052316355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531af21201587ec25f66dd36580e779cc5d521a028850da9454e08509e95c88f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DGA052316356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe2c04dace10ece33c2a4616b8487869f5cbce07197446f9d3311fea14c4cee. 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/GBK6Y2251751.
I Don't Wanna Know - Yungness & Jaminn Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc008d2b1e30f1d13c0f6c32aee5a7a2e72e17e46cf489b4fae8b392aebbe02b3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBK6Y2251752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84cbf1f1c1bcf35232ae24797f7aae72c676bb5423b6458a7c00c62cee3a6884. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBK6Y2307702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2174f95fcaa1a35ecaf779e39bb7c616dd4c17f5cce76194e0dbede1c2b11eb. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/GBK6Y2307701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121b3b209df0b689649f55ccbba41adf24cbf47d67a9f690cdc8ce17b0d28312. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DGA052279234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fce7e8c302acfd0af4612f3f20ab981ffc9b041d6e10f3ebc148c6db13ba01f. 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/DGA052279233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48eabee390a02e7abbe7d2ca8be74b03afba6e5c0e52ee237ae8192b24c0fd8. 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/QM24S2206509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d65dd1e485d72eaf68fd93b75743eef690c6a31154287ffd4d35206760001a1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM24S2206508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717d5e6c9bb1ce0a6de215c0b80d5013c964a37436323a9509e8c33be51cb0e1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM24S2201442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c878e708e7f79aba463bb59294db2cb9fb2897eeb298d394082a156bf82b574. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2189228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c6c8986bf72e37da77c735d4f5cf1f797155e2fc1c56acb43dad8b2dcab0f2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBKQU2189229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe990709d61ca02dfd1ec79095b147a9048bf9199a2aca8e963b2ac086c8244. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM24S2201445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ca8401150b448353538b33261937b3eca4dd2ee04f11c4964b2178c27fcf3e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM24S2201444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07a2f4ff3a7baee34a293c5ef1667ac2e5b93c0d6eb84280fb75fc5e7d82716. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM24S2201443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6da1b3f3f4c4845719c7d642ac85d272ea15440d349123beb23867d2d06ddb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM24S2201441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a799e24a8f61a8f176bf32810b3baee1f603b422f7e9b1da55c45bf4e6ecc9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU2088839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88837124d821e2053d65aec0f7bf444bc7ba628d6aecb08edf8662d02ad11285. 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/GBKQU2088842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff402fb38a127ebb1d9de9fd61d0401fb0c58c1e750558fd484a5c213a0c679. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU2088846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b5b5f0ea56995fb09e0b6857bc781472578c4f1a8c7cfa6e16c8d95c4a6707. 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/GBLV62110799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3103d0be86dcee65cdeb8bb2b05f79059258052d0ee77bb0e37cda3d1f0aa8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEHE41900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58be370d3844a940926aa4a509010aa9129e38abb291943e83b545c18b73ea87. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEHE41900051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82329d674e38cf62321d6a355b7b21ad2d716f0f09eb660734c790716a467fa7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEHE41900052.