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 0x4a942a798c2f7cd8f276ca57410fd07f8520bd4190f66d5bcc3794d32d7f6e38. 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/f9788951-375a-4494-8035-3ec120c85edd.json and https://artists.proofprofile.net/proofs/artist/f9788951-375a-4494-8035-3ec120c85edd.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 0x4a26d28a40bad89091b35b4d8a95353faa468a193ac253589a1ed920dac39472. 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/QZHN91946200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f07785f63faa86f268b84cb7492a5a4fb5442a9d4330f68a5232d024d81281. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZHN91946201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bececf1f3c7b38a190d2d6c73af543bef813428c06275b79df6e514b6529c9. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QMAAK2475899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0f35a3628b723db04eaf2000db33d9e384a75a88cb23a7eaa9f8a9ce166ead. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QMAAK2475900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73db8623445ad04782199484947fe53eb66767006330230f21caa699386cf23. 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/QMAAK2475901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c95c842cff615e828e2d68f331cab99898420a4228800b7cc8a5fbf258d1d7a. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QMAAK2475902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cf6b0c5d56451b8c094f7e9275d45619771ae603c56f4658ff9788c9be7062. 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/QMAAK2475903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57638e1e4f2f8cd7f4bb902352d8dc990cf4865635e0974992b318cf9dd0b7da. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/QMAAK2475904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27354e077db90575b09672366f2796df17db8bf62c754fbe4e8a6f575a295ef. 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/QMAAK2475906.
How Do I Live (Bunny Back in the Box Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fb582fac5bf2a11b326fe1d32032995b2d87fbab537d6a27469e9db385c828. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMAAK2475908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53aed2c548164a751de67032d28c25ad5f7b5c1193b46effcb6268da2d31ea9. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QMAAK2475909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb427f345935ed858d482cce3f5e53229d0b2a84d9b43c249762d189fa4af40f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QMAAK2475914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b1eb3ce490701ed907dc47f0d4078730a212890b65f6cc379f7bd5c934e992. 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/QMAAK2475921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369518e26708efeedf923d3fe5623a22fde2c5fa132fbe3b5dc8f81b4b4d0bc0. 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/QMAAK2475924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb131938d5fc0c7fee1fa45001728e5c95a6bb1ed6e3b4d04006f4daa340c991. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QMAAK2475927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffd6179acdaf261aca4f0e75a42d553e02499a531675bab4fbc0867be1c0f77. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QMAAK2475928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00938dc00552454dfc0598fb7b5f775679e3031c035806e0972e754b41e3f9c. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/QMAAK2475930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac581f9fa7dbb269be0d72ec49861190a47082c42bcb490e099d4d8929bee5c. 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/QMAAK2475932.
I'm a Member of the Midnight Crew (Post-Punk Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a957d745c425b012ee04a4368d0021096b561f599675af712faa7d8ad10f20. 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/QMAAK2475933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8e282e8c833b5797e861d493b3a165a0ec96e5c9d4fc3ffb670679c7c02d7b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZK6G2514943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc81ad24bea58bf92e92093a146955117f0699dca112272871503167e11b8b4. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/QZZ7T2567930.