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 0xc9cc201fdb0a4c9c4999aa66b3ba8ab387e001ad45c8fb81fbe162acc5eeafb5. 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/f95e6d8e-67d5-4274-9571-4f9ba7987ded.json and https://artists.proofprofile.net/proofs/artist/f95e6d8e-67d5-4274-9571-4f9ba7987ded.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 0xe7a75c94165c2d50145ea0f43c27865e309073df72248994992fecd083d18e13. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DKRS42000701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3026d2eaebb763cbe34583be0aa3c0af7976659697c686771598c565c20786. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/DKRS42000703.
We Fell in Love, Ran Away, and Lived Our Lives
We Fell in Love, Ran Away, And Lived Our Lives
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345a72c4ea8c8cec9137cca2ef462cbd19716b8131968167f8f52d912ea64e0b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DKRS42000704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39728d3691f2028cfdd06ec9b416c69e80fe89c0e46537d1783fbecf79d6e4c. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/DKRS42000705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8d351b9df24adbed204c97e04789cc5a31eb833108c81f81fa9833a4e9b7fd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DKRS42101103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9946ff9f60ad685174ce1a7fc961628a2015bce7a79960e95b2f72eb6ccd76. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/DKRS42101102.
Selene Umbra (Antarctic Wastelands Rework)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc5d7dfcc9dbb4c0f7d5b41243ccdf00d4ca2cb6e9dbf938d1ba7f86a468ff5. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/DKRS42102303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b38de4f9c5ea5b2200e32ee9763d2f9769927338c9eb57198cf1007f153f8c. 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/DKRS42102304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b38de4f9c5ea5b2200e32ee9763d2f9769927338c9eb57198cf1007f153f8c. 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/DKRS42102304.
Selene Umbra - Antarctic Wastelands Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41636107e572051799ebf1e4d04fe7740a8c91b8f34f6adc903319066819716f. 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/DKRS42102301.
Gasping for Water, Drowning in Air, Dreaming I Was Awake - Be Still the Earth Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272b149d28147caa391137972d013ea02b95837fea9e40701b1814f4a853eb3d. 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/DKRS42102305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69dec656edd4a24c033cf7504425b04fdb2fb5a6ae25bb638a14701bd368fff3. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/UKR6V2270909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254c5151351f8ecea26e6673cfe887041bbb789a8b84e162974892e0758fd962. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/UKZGC2301190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a227f29a7aa0c207061b87d89da60c830976a6416ecd42d62a485f235ae4ca. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UKZGC2301194.
Heartsick Hymn (From Somewhere Quiet Rework)
Heartsick Hymn - From Somewhere Quiet Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2bb8a18e0bb7496668ca73a1dd3a178b9e3f6b0bf8ed1ef0fe32f559e17868. 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/UKZGC2307668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274a35f9c32aee47ff8491f4dc02cc132297e17f3b25084cdace8fc4b24a4fd9. 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/TCAGE2204542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6848a0089384ca55ceba3a3b4fb8152e517804d231a3ec6c7a2f2bb2ee94fa. 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/QZN882210478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d1b7b20697f4d0058186822374edf1bc7064ffe6fb9b1522fa37f8dba6c620. 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/QZNWY2222962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f43f326f73154d57040f5933c653fed3d944c954885ce6df49aaa9670faf9d. 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/UKZGC2302019.