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 0xb81be3eaa352643fdef8e7e7f429e9539c46c9cc4c045b81e7fd1f4716bdad49. 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/ddf6698f-07b1-490a-a314-ba561ca49529.json and https://artists.proofprofile.net/proofs/artist/ddf6698f-07b1-490a-a314-ba561ca49529.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Leave Me Alone (I'm Dancing) [Nicole Moudaber Remix]
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 0x4e0d5041739d491f8be712109e8fb19505b8be5c67c21da75174db72d848ef86. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/DEM932200170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fca5046b1367844b7074a7061dcbb5f829bc7ee5d92d9db77bce72b4e4e530a. 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/BEIW12400172.
It's All About The Music - Crunchy Kick Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661c9ccee71454b3a4262d67bad1fa867790605db55195aaa1283ad4bbfaf450. 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/NLE802300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f26f9667bddf54f754152dd0c68e53dc443f00b0127eeb3ebb676387fd7fb4e. 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/NLE802300034.
It's All About The Music - Crunchy Kick Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796021cde0a3a1b0a4e0b9bc3b5ab0689e5cd81809329faa5d185d12f3e8e47b. 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/NLE802300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d31c89d26b3c405dc94e1afdc766ac28f3525cc0277bff597ac8083a7f76839. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/NLE802300033.
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 0xa8ecd35b60b166bde923143d8b0e4cdb5ba62cd36e83eacb751b68a1c97c8263. 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/NLZ542101832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009e3ef226f8a1eda3686fc249191294d46331be5fc63c742bac73d4016f3c60. 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/NLE802300031.
Café Del Mar 2016 - Dimitri Vegas & Like Mike vs Klaas Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f7ccb13f5bd731d302c1162fe273f06e502a4c663af1d65ab12d137fd9260d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BEK011600070.
Heart Of Mine - UpAllNight Famous Dub Mix - Mixed
New York State Of House: Sunset Edition, Vol. 1 (Mixed By Francis Mercier)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534f954ee78c8a2a1378b8bf6a30b953338639647cbf182751c9f2113fc4ed96. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/USLZJ2129633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5ee667ef279f0e7de99fbf075971a0279d45d17c526d64cb3794a30a14fdf7. 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/GBJAJ2400622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342d79e92c564fa5a10c42bfeb618624bb0b1d3a3492db905e88af1eecb3fb23. 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/DEBE72300934.
Déepalma Ibiza 2016 (Compiled by Yves Murasca, Rosario Galati, Holter & Mogyoro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f666f67c64c48c3521ce4f642c2886dc1bed0c981f22b9a8e2b7be238924d6f. 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/DEM931600093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37c27079856166e507f67b9cf85a16677c669ff689ba8054d091737faf1b43a. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USSF90900507.