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 0xf2d6912a0d776f7125f3eb66556743451aed23f5a86237cad0f7f78d5d121b6f. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5de993bb-ffae-4264-9c46-42e1f8f6debb.json and https://artists.proofprofile.net/proofs/artist/5de993bb-ffae-4264-9c46-42e1f8f6debb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nothing But... Dubstep Selections, Vol. 11
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 0x888f0e79cdf74ffb4903e19ee068fca60f9ff99ca6acb87ec8f8bb4952f9a33a. 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/NLCK42219805.
Insomniacs Anonymous - We Rob Rave Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd330319410a5182661c4a21c8b29faa0cd32ea0575052f8eb1875a3c25feb013. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLCK42219808.
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 0xabbd204ce0addf2daf10be7a78525f2a4354b94284e66eb1a5b9e0d215c0881d. 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/GBKQU2064400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a78c348381914456b59d6fdf56818881cbf2d3ba55b4eaed8ae35f7f6b35168. 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/GBKQU2064402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531fbf1849ad34da84044a78db2316d967cb2de3251a75ff4dbae610d7caba52. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBKQU2064403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541feea8481acd35dc6455daa0aea88732db33957e10037c32018a9613817a17. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/GBKQU2064405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761fe14a7f9bc92d639214345864bdaaf5ffb14309a51619bfe37784906b1650. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU2064407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247410e669ad53dd68c1e79e5033f74cff09703e68a7ca2e2c79fc1cc7ff9cc8. 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/GB4R71600066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc0ad623d9b442cc0710aa83243bdcad7e413e58721dca7dafe3ecf6ba601d8. 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/GB4R71600067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20c7e90b2123422dea48db89eebabd97b56dfcb5f3d9f7ea39b02709aba28a3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GB4R71600069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf505c14a42bb9f4b9f54fe3c7923ccc73f192f2dd980266d492c0e9069fe48. 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/GBKQU2096899.
Train To Huddersfield - Samurai Breaks Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7724146d879f34241e6cabb70cf0a3267b66646d6f955ea9a3db811765fdb2b. 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/GBKQU2096903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07471f9686477e881411e2730d4be13ebf1ddabc5171e9cbc8057181788d2623. 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/NLCK42229205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30ee9f4f787dff63bdda92e51b9f8db8adb90bae50d73f69a3deddc6b379431. 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/NLCK42229206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98ca9dcd2c339e54723a04105fff68663c8fc071891d55916c4a006f223b825. 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/UKQLB1602214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db88d466827500fb854e950a6e1571ce697bc1ec822f8c8fc4b35c317465b1b. 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/UKQLB1602225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551de03568b38c120ef9fac576802b2359ee5c66457cf08795947c060b9e240f. 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/UKQLB1602236.
Nothing But... Bass, Breaks & Beats, Vol. 10
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ca2e332c267221514e60d8f600d3c66bb43eca457eb9c43ec9a514e293bdee. 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/GBSMU3103905.
Nothing But... Bass, Breaks & Beats, Vol. 09
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0632191242a6e342a8a3a4f5f1c23e927ded7e303b96a7e92c147060803785d. 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/GBKQU1915438.