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 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 0x7f0808a68ca73f31000577cff0b140670aca68ae1a12262cfc932e3a5eb9933f. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b31dd614-13fc-4083-b892-a143c0a59a97.json and https://artists.proofprofile.net/proofs/artist/b31dd614-13fc-4083-b892-a143c0a59a97.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 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 0x47e83eb7ce15bae70437cdba3ca3d4f991f622a37d484878a0343df383d7cab4. 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/GB8KE2211002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee5e2809179250a8bd5198de0fb9f7d2866c034f2ee78134187a42f5e3d6058. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/GBFG91700059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f8cd3c56457aa2b3696176b8503e403295ed536a8c95f0b7ebea6944e2c959. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/GBFG92400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d54396e9174e835f01cd434208647ce6030b8fde63f2911aabb4dbafdd78e8. 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/GBFG92400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f564e9726dad0d5b0483600b56d42e5b11dcac4af2ab16ae13ed27b704add76. 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/GBFG91600131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817335c04896fa0be6fbbe5ca7a372c751fa088a7feeb71cffcb4075ecb2b983. 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/GB8KE2212405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d82b2a6108d0fe3efb0d376a3e0be904b31c3e3da7430e6272cd477edf0730. 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/GBFG92400062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cff78278d65024980e6402c316e1dc139583c742d391216944ae89b2dca1f6. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBFG92200363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2617c5a0ba5b290af220aadb10f7be8245b8935eda1a398983bd528db9ccca73. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBFG91700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d96f28faa9bf5fee9cb44e46b9203c7d97445ab39c4b5c9381716cdc8ea759. 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/GBFG91512452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65bcc3a7fb25dc49d228be4a2579d6d94d46f7c3d102ea2c62d9e82c36249de4. 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/GBFG92100359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d766dac0379bc75bf47cb865649770ffb4f41e2fa7dd5d09796f0204b7cbcfd. 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/GBFG91512657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e5ec73cb7f082969dec18bf36afaf6c5bd6c6e0dd021680cbcee1a39eb9284. 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/GBFG92000161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b2db9b9752d458159b563d24578a45a3667b3e9222b473b5fc98adba74b515. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBFG91200141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03eed730ceeb52c19ef60cc8d7596afb28482156bbf39036325da2c74d450abc. 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/GBFG92000167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e4490db356ffa4f76bce7beb365d86f09e78dbb545576d6f74f712c544f0d3. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/GBFG92000155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040f3fcfb0b8e1e9969901e5d0360b1a980173d46b0b30efdd38739adac7a1e9. 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/GBFG91900062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56718a001471dba870a0c6d3c6e33837a0f3869776e29c73ab9d023cafb961f7. 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/GBFG92100367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e248b1a4b2adca0d23216fb7a51547289a6e1c364d8658be38a4d91c93c1934. 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/GBFG92400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b05722c007a079ec007d5526d3efcf2429f7cda8441c9ac1a758196bd39692f. 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/GBFG92400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697a6277e0ea3afa8fb5ca96d6fb63aa082f616db68a8eb9b6d3571c4df9e7fc. 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/GBFG92400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ae19ba1b982945ffef7b601d5656718cbf2ed30d5ba2b6f8bcc11808c24e76. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GBFG91200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1362c10b1ac30c794dba7d9770835ddc6c9f987633b16b36560c5020fef7052f. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBFG92000244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb169421b2620aa074cc0b5e0869a6d587ce7d4d6f5b334832205d0a02f5f511e. 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/GB8KE2329144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4258e2e78ccb82d3813ebfd87254b0e01dd7de16be7729fb88b7d3e5c6255237. 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/GBZ4D2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06535bd40e017d189eee10bec3f48760670eaed4b472a2f85e13a60da09a552c. 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/GBTMZ2201124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a606f3cd816cbc5bc08c7c586b29b94558831fd4dfb3c4876e439f486c9cfb. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBTMZ2201125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d905007d05bf867ac182eb93103e4970442a3e21d93d0f8fd5859e5b0589ffa. 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/GB8KE2206170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf454298755e2ab27c73fb5eb00d34fe262562fe3321873dd356011a3103987d2. 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/FR2X42220634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b8e322b8f0b55cb165b6dae2a8026eec524d087f2b01639b0a8a66cfbb2fd0. 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/FRX202125186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc291832641e7453d6dc04a8aac9a467af05d0bd7c83acecf01459c07224e133. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBZ4D2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1a0ffa91356f61d212efa80d711a77e5676278c69613d429f9180f89c39672. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBZ4D1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ff5f44920adecde267f2338a7ad491872478f2e57bbb413eea97a930bc80b2. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZNJX2157011.
Nothing But... Drum & Bass Floor Shakers, Vol. 12
Nothing But... Drum & Bass Floor Shakers, Vol. 13