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 0x67e0127c5e7832e42708a641f778e4233c49c660652cd717e90bc5a30008c7af. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/079988c8-21cd-48c6-bcbc-ba90cfedc87c.json and https://artists.proofprofile.net/proofs/artist/079988c8-21cd-48c6-bcbc-ba90cfedc87c.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 0x155d30725a9550a4a6ff092f5725f58afb72918be3f51c272b1b6bcd72e699be. 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/FRP401700600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5d250017ef939960baad8a315d74f587b8fff91d9b9ba0346fc00c1e043335. 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/FRP401700610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8d007a997efe3f2b61dfdeea8253083a2e80cb3940e278319bac83a8dc68bd. 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/FRP401700640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c805ae8b3897d8b7d0d91fa21ea76446e55b2584decc6e24a4de8f3887c4ee2. 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/FRP401700660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6be0cbb9a2e45223cd95ab0e541998bb40b6a7422f8af0bf9b072aa57c8649c. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FRP401700670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54329d70a089769c6d580ea86a15f8edb4168dbb649338abd8d67573685867c2. 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/FRP401700710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7283495d95b845118a0fd4cac00ebf2de646639d210e29ea21a48151b5d42941. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:28:36Z), 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/FRP401700620.
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
Latchoska / Dos miné / Lo rainal e lo merle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe858dcf3e16476cd06daa768b05b3c62934f53a7c2fc492b71568686b7a84c58. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/FRP401700630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52208edbe857b51985b85cd7822cb15e38eb2f52a931a5ad9ba79c72f0377bc7. 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/FRP401700650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bf7a3ad2a452435bcc366168c660333b4872ca3536801d28de7c2f6875a800. 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/FRP401700680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3f9cba1024a926e7eb20df31077873f313b437f46cbb9bd25570778b5cd623. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/FRP401700690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5f859b12140070a6ca0c58dcd0bd3b143a6a75cc1f4361b9bdc13d907e9163. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FRP401700700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac38754b2967471d894943a3dec0ca80942b7d0ce9551180d9f271803d9c8985. 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/FR9W11518793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a21b6bce88c6bde6b57aa0426e225a19c0f44c0ddf16ffe9b9782b33d1d42c5. 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/FR9W11518794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c39eb37f63c2564bc297da7f5c586d1078463723b3b15d3d2a68d3b2bd2ac6a. 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/FR9W11518796.
Le dansarem pas pus - Bourrée de 2 temps
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981902806e33a442286bf1d86de800a900cfc9f23ef8a12c10d85da6618d821a. 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/FR9W11518798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33bcdb54ac5daaaf3a09284f397f212a798c1b2a6149c07f129d7eab1ce4fd4. 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/FR9W11518800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0cce9b4f46fbf2aadd863f5c47d1d681a0e5efaeb4d9ec4b174b537e7f3ed3. 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/FR9W11518803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ad5b0d0f02cbfe465c87ef37602cc2eb2b76463eeb0dd3f1ed6982f3f16b02. 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/FR9W11518809.
Quand io me'n vau per las bòrdas - Rondeau de Gamatan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae7529fd9fd67ff4a540d10c098e01158caa4f775483f0bda6421417acb971c. 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/FR9W11518795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e29737d263a47a9978d115ca75b0f4a8a91b39bbed868f5857367de6b52950a. 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/FR9W11518797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0df300df67b5b4864dfe35b5297c308a01a2377dd54ae5681810c5958bbf09d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR9W11518799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54424471595d7e5db2cdffeb000b4a0895efa574f0c7a4a5361bd5b3cebee702. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FR9W11518801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069f32994a69b839c67edc5e9141678ffd5ee506732692b2516a8d0a8226d630. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FR9W11518805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089686bef475127a5f286759a0e842874d0025ee50782a1e06154f81c7e0df1b. 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/FR9W11518806.