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 0x5cf61ec6983f97ea2497688763e59014618ed9261b64069eb0b1a299d9afc95d. 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/89922d8b-4b14-4b50-82bb-db38afcba2d4.json and https://artists.proofprofile.net/proofs/artist/89922d8b-4b14-4b50-82bb-db38afcba2d4.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 0x0a336703e61ce8e847fea1d4e735c5ac997840cdd8f70b8f01e404a0f343cdf8. 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/CH7812362487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc477643c3e42c4eae8f85f8790c93a9076670c53efa73fc8366a319c26bd6f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ATEK02177028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11a376b0a370ea7a5b0a4b3a2d18b307af8c82c9295e4479bac173925ca4ffc. 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/ATEK02177029.
Nothing But... The Sound of Future House, Vol. 04
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d9f5c4ab6a70d7425e93d7d49ecbcec6af432535895a68deb796040d8f6b9e. 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/CH7812104827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9493c10791e97a753bbab5841eb2e84ff97c5ef4c97b08c0e6b0e94ea6cb2f0b. 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/GBKQU2177047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6919fcfba3d27e22dce67ddec29832e48cd0a502ff60fc3c331ba19b96b958b8. 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/GBKQU2177048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a9aec433f09a7dbe6f050f544c30e6bbeb8512542c8c67a18a94ef803bc4bc. 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/PLN381500127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e07c1065a83ca5f9c8faee389e6721a405a587f00fda1edf7d6e46621f71a42. 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/DEN061400989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9516525107124d4cbfccc5790fda7eb5c0f1200ffdd62b924a10dbf193a2cfee. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/PLR921616101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8c64f11f01f8bd57482a38aa64f0fdaa0b1e5d172e2637d9a66c6140740db8. 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/PLR921616102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129df07050bc1f580f6f8d15f1dcf8c05c4df877113e85aa31eef864996d4620. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/PLR921616104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ff1c2b63360b512e09cc12302874cf0e8b2bcf3782aed14cf44c7f7469239a. 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/PLR921616105.
Never Go Away - Groovefore & neeVald Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd835a3dfe4197338fbacdde3f46aa1879f853ecacfc7a41610a6af0fe2fbbf6f. 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/PLR921616107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e778e2322418def184b419036789253856e37bdade54305999ad26c30d81d8. 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/PLR921616111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c339375eab01ab14a1cf5337149463e9e7c5d778c4be7a2d432a12a07b845e. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/PLR921616109.
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 0xb1e60e9f48c967026c1eaea0b244d24f2a034b6041c71177d166401e693997ea. 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/PLR921717101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a95e8793534917c61a04d342dc037e8183925ff98e21103fb527206e8dac63. 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/PLR921717301.
DJ Is Your Second Name - TWISTERZ & Waveshock Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb633bde667e87958981b076a91452a63731d0c13698a2f9b90b4df6c05b89d9e. 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/PLR921717302.
Nothing But... Future House Selections, Vol. 10
Nothing But... The Sound of Future House, Vol. 06