Briga (Fight or Struggle in Galician language) is a Galician independentist political organization formed by young people in 2004 as a split of the Assembleia da Mocidade Independentista. It is the yo
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 0xd9137a5fc85647cec26094dc0ad413ea97abd944262d2b1d1ca0f014e569fd60. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30c6a10a-0571-44d7-b9bd-bb5250d5fc98.json and https://artists.proofprofile.net/proofs/artist/30c6a10a-0571-44d7-b9bd-bb5250d5fc98.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 0x4a9198a29e2279082e65caa3a416ad9cb8626cdd6cdfdec72fbf684fa0799eed. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/IT1071300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e02ced2ae6aa63a7d837e83e071326b4af63aa19c7eb8d920b6714b1f0dc2c4. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:36:22Z), 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/IT1071300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0154cd8b5720430faaab5a9a5f40b8a3a514ebfab973a8f72434a970e39b7a90. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITUM71500530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf10305d3153945a64fdb9fc0d9f27b92495cd6173a976ff7eb9872af1ee608. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/IT1071300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7796f579b7720017fb908c5ac534ccf91a37ec84e37968928ae2f6f80c09abd8. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/IT1071300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7917f9d02cee8ac2cab76e42925aa2b7e93b3808ffe2e7da01bde7bbbd602d8b. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/IT1071300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e559f0c0b12a0dff450b3b88693c84f76ed4232fdc6ecd1e7cb2e4f0fe5c4e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/IT1071300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d5bfbe67d4a12968b0cae678afc5787044faa63a2c4c288527ecc063347097. 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/IT1071500120.
Honiro Platinvm Track (feat. lowlow, Sercho, Mostro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9655c3a4c790468aa0f352d06c7d0a34b804f0101a2e47c77911040a148d76b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IT1071500150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066c810f733a1c9feb1718146618f3b4b1e4d702fc83c7cc256b3137d936cec9. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/IT1071400083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f659a6fc7fd730b8692e42e97d34ee55a1eda7acda419ee76f2c5814f378cf. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/IT1071400085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac8b489aa210048c3d27731c5ba71724c6d258f7d666b88a4229d7402e0ffb7. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:26:29Z), 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/IT1071500147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd708924e32251ea3935b71d61708db6323f241b4aabec765035243a3204e9dfb. 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/IT1O71600222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fe7b3a65409c022a10b683dc285436da892c81c04f69ec696f759c2683957f. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:26:12Z), 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/IT1O71600234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5b19ff34173add7612c46ccdfa435de74da1b0ec7716745c908fd4f44c6899. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/IT1O71600227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fcab2e3e4baec44e6e7d24f134433916393d297452ba3252fc668aaab8a655d. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/IT1O71600233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb848c23cb0e187ef573311ada5a20e71d93efaba23614c24220a979e96719afb. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/IT1O71800388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9037ca0dad5899f1b25457d13e60f1a811c0c5dc87fe7465a582bf1b88cfa6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/IT1O71800390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc333fe37908b9eacf4511ae818d6b541ef00d96662a6cf08bd63e3fdac4453. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/IT1O71800392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9037ca0dad5899f1b25457d13e60f1a811c0c5dc87fe7465a582bf1b88cfa6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/IT1O71800390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c36da86f4070e1708e1cae8f17a6755b8707c709f62f8e529d7e2e372f9ffb7. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/IT1O71800393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b592650fbcb4f705fbca3dda1b230469e3b513559ea11075dbfbd7840df658. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/IT1O71800396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2c5fda88d7f61cf381c5c359dba9d884fd59271de70b1f910ad194be0b5d31. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/IT1O71900535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250aadec4f95a45a1e043bc40c4bde92ce44da3cf3a3d1303cee2134632b697f. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/IT1O71600172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2e1a121268db2c6a2e4487e44f691f76c8ff4b9914b939c9f4c993443c57d2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/IT1O72000645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87be07ff708751bc3616884a1501cfc850b57a019b6d3221ffdf7472c7c0143a. 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/IT1O72100696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69f0041adeebceb3815823447825ff786edc8721564bab8507f971ad05bea5e. 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/IT1O72100748.
Colpa Dell'Alcol (feat. Random & VillaBanks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733366946e7762926033fda03682f3fcfac406e8c1654eab2354c18edb294399. 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/IT1O72100743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf79f83d478aab85f4150a34d7049eb84f2a5fc2f7e2e1160eb3b489baafc5a4. 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/IT1O72100729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5608f1a9b0d906f741c8154371a3a26a19edda6824a8cdbc2eff52469c84722a. 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/IT1O72100744.
Ti Manca Sempre Qualcosa (feat. Anna Tatangelo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9a7d223b338d4f03638ef689ffe8d533bce669b8823899dd34354b93b1922c. 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/IT1O72100745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbac5d84ded7db73d8fc7b1ebefb481b71f633470cdfc9edd27da81a8cc88f50. 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/IT1O72100747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d18a7a6cf83d7699d6e433f7946cbdb2922f437c21a0f11633d8419820c63f5. 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/IT1O72100751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f34968ba75aef4ae99d89a95d0b5690498cf6c1b9eb2e6a1a5a506a77aa4491. 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/IT1O72100749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fd04a7e96df9e77c06540bddeb1ad36838ba144f12bf3fb26ade0a4a4e63ea. 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/IT1O72100746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fab80bbd0ca5acb8dc5737e711c5420e776a228a438da666777f9211d93845e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/IT1O72100752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753c41fd0fd469d9fe0c79c5446190d42493c9cec607abe7b39bcdae8017a4bd. 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/IT1O72100750.
Mind the Gap (Instrumental) [feat. Briga]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169af0331859bde37821904a93579a6d4afb7e5c8f56be6a0cb669267d8987d5. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/TCABQ1306519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf54db06eceed2a1b971deb8c3eada351b227abc0b810320fedcba9026f5a13. 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/TCABW1446675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee432a7dff70b039d53b36bfd7a74f625c7897342240c1117120226c122821c. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/IT1O71300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f706587e99939598d0e63baadac5f9ae47ee321c39a09d68a00c9a374f5d1b. 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/ITB001600764.
J.a.S.T. Pt. 3 (feat. Sercho, Briga & Pordinero)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d973b48c0d7366cf9e2e459d8b33ad4b7ea9cd365bf22133d478e523a3af75. 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/TCABP1333840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b2de5830e00844134f1272a47ab060c7eefa7eab43a1542514a28200884686. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ITS8K2200006.
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