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 0x1a0562db4f2a260ae3e2dcb5d8abcede3fbe5471477bcd6ba33495558b29e3c2. 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/f106430e-81b9-465a-bed3-c718aafc6b13.json and https://artists.proofprofile.net/proofs/artist/f106430e-81b9-465a-bed3-c718aafc6b13.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 0x19c0b341b488244bae6eb5bb87735123a328d163604ad87782397f9cac0f0c7e. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:53:10Z), 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/NOGVY1506010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f66355f1ca68bd181b259ad66c5a5af385f863668182b6b98e91647f9f156c. 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/NOGVY1506012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089794a33b60a19e19eb09368ebdcedabb81ee920daf5d4235f37249649b83fe. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NOGVY1507010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfa673882b2e2becd2a31e7d4652775327298d7f34ff013bdf488c8bbf24577. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:29:25Z), 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/UK5VU1500064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bf283a21f7a61b42e43550fe35b2ffb5d3d6c7ab9197351f361145dc616829. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/UK5VU1500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce23474f40f1c74f24f048613d964d214657eab2804eabba9ff0195fe35ec39a. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/UK5VU1500068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67412da2034b59c5c5426849e81f7207f0ff8cf800a1aa3edd854af8c97c4f1. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/UK5VU1500069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89db7ef9d6b5556b452308fe1f6514b772cef25afa79307f9fb1685aaf6d1d71. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/UK5VU1500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3054daf4dabaf4c8ea9565de70ace9735aa5b3d687c22c895566849f87b7774. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEKV21612557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8483e1608abc49e6416b87104edc051c925e36a4039ed586483141c7b7325a. 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/DEKV21612726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0064a48dc92e33e2acff7dd156583fd57bc002ac6c6e5b211b46bacacf5b70. Chain 2 (Bitcoin): anchored in block 957846 (2026-07-13T10:25:43Z), 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/DEKV21800330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9bdaa17c0e5e1651eec039b613a06aed1f4be30bda7cd538440f2734c9747f. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:51:26Z), 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/DEKV21801969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1898dbe634270675670734a3230415f071085a5d853573cf15aa76031553441. 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/USY281608240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653ac486ca690ac737f45fce75248c0833b71c040364fe913b3eae21e45bc4d0. 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/TCACX1771338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e60e37ca5c97da702cad983faf1b318a3546a2505d99142beb3ec98544e98e. 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/ATR981243595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbd101b619b7ec1bd77572b104a8a574c72c23c9c70f84035b50d78fae34ccc. 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/DEBZ72400116.
In Your Memory (A Tribute to Depeche Mode) [Cover Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9d1ff0d2d1f5c8560a6c5d6e084ccd18385fdfd6f99340748944fd23b0c0ae. 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/DEYX82229297.