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 0x1eb52ff84bd007d7c1cafa1e24994462417ad3a664f98eb426b251c0f8018e17. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90540827-250f-42f6-93a9-f409d51192df.json and https://artists.proofprofile.net/proofs/artist/90540827-250f-42f6-93a9-f409d51192df.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 0xeaaaf7d126b2ebdce5e14d4de9fb11ae398d11998faceae1cdeced28920d53f1. 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/QZS662196307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3532faa6d36b000b1dd8243e66e53b14fde174f2096a28870f4d45ad4911e827. 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/QZMHM2073471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ad4d61e7eec2463ab24c2c0932076b63bc7c4334175bfc9cb8eeb63978cd1b. 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/QZMHL2028208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21cb764a055f3be36bcecc1438cd3febb55210e9df30aa91376c06107e4d0ad. 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/QZMHK2276896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a72c9d65da6d5ec5693c654f8d7666300571c3ac116666e39c0ef4d4b27b4fc. 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/QM42K1939950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed55da16f60d1ba4fa2206e23e652ccd3d5e2d4ce4c91dc80aa64013ef41d061. 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/QZK6F2105162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8b3eed87b243d409b6a73b1e4f06e0e9229206e9e9ae24c1cddb5e7e650c6c. 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/QZK6F2105165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccb0b1816d0f01be775bb5dacf24715aef0aa0b3afda69e5687cb827b45f73b. 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/QZK6F2105166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a23ad0881f0f71bd008481e17761602e50d56b19a206b0ebfd91b6c5a1c4f1f. 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/QZK6F2105168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8c8fe59b7dd11565c301d31cecb5a38ded88a54f8d93fad0d42093453bdaf3. 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/QZK6F2105171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c342cf14248a2a226906d701e81bc6850783cce42f6358fab3d42d0b15b1a61. 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/QZK6F2105175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6affff7a998353813e43c4a81927941e5dbbb23d5879a94b72a5cc730d56ca10. 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/GB8KE2162377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a0c759efdc1e1614ef248084508ae7cfcaee9fe13b4325272291620409d6e4. 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/GB8KE2162380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb895cb9d5c1fb59dffa791ccba62438c0f117844e72dd17e466014ee6fe317cc. 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/GB8KE2162383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1413c3c2055861397c344e9b2ec2dc3e22d4e5e83793cf81c75bbaa820f37f8. 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/GB8KE2162384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3a3d7cd8f6a7b38735c70f3f690f543fd0964164f6b85d6b63540c12b9b17e. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GB8KE2162385.
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 0xbfdd156030e83e929e934e2803ac2cc2fc4a34feba96678fc0c60e843488fff2. 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/GB8KE2204458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd9402f196272db600e9bad42ca859366e6513017e7e18500e6ddf4315c6720. 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/GB8KE2204459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb133b9ace383689846db6ec034e54910218a5fe0da1a6de466cb6d7126d8bc6. 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/GB8KE2204461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acdaadceb3033907b0040e55af0e6f8fe045ea50469b15ddbb2239db210add7. 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/GB8KE2204463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0cf51a4bb277b0208cb3517e289a51b734067dff777aff8bcd223a63aebbd6. 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/GB8KE2204465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70b050fd139c25604a55a6d862625b3e69a0cb152b3b43931e31997922f5c6f. 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/QM42K2074590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646c9d9f7aba72de1fc5caadddaa8afdd25a80e8491cde22449c59c65f99985b. 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/QM42K2016422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84183244a05307cd31b605ead86d2ba2574697c07811442012a1d32949b7810d. 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/QM42K2060593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65d02ff5f223a1f4b249c9d17d1e90770378b4de42f1cb73c609c12c3d025cf. 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/QM42K2087661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d98f789aa9d7d02b6a0fd2795594c389fce86b5ee2c29b658a28b76db7b1bb. 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/QZKDK2119871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48f5ded6a5904f1bc86cbaecb369893f95a02a2d2d610f34e2fc158769a0bc2. 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/QZKDK2153466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47839b88863e08c1db70db81f121c438c6cf5003ee569d4484a526e2f4ee38e4. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/QZKDK2105898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517afa0155dfeb1be0c13eccf9a574cb4112e6370d6d4ef5dd78ce00335f2229. 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/QZS632180918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d34fe9796894c11329bc164a1c02dbf5c82041ac386c656e3a995595b84646. 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/QZS642148781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6db7f0ebc7db92c43b99281264a92ce8edf033e84e9297afb3fab10911724c7. 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/QZS662120014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a7e70833e5a138b4e6d590131ef7155813154a135953e646e2fcaefb0772cf. 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/QZS652198973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908bd0bacc5ff0cae8202b81f3fec5afc9aefb324b1be099d8e27142d4c55c17. 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/QZS632103081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e106811e58117e1f1d3e9f1675059fc7644139561c0db7d7bf149218c5c0b4. 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/GBKQU2220141.
Nothing But... Dubstep Essentials, Vol. 15
Nothing But... Dubstep Essentials, Vol. 10