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 0x4c792130c7d6ffd073722fb4e3646095c2c53c8dcd88cb8a697c88aaf9e1d054. 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/1a43e126-f838-485e-af70-7b0382cb3acb.json and https://artists.proofprofile.net/proofs/artist/1a43e126-f838-485e-af70-7b0382cb3acb.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 0x43dfe30f4937f496f369696bd33c76cce124a6055dd5a6299fa77102aa8ab34d. 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/AR87Y1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde15db297bd61d056fb8ecdc28c10f73073d9e9caeac50a085a7385763dc920. 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/AR87Y1300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925690e3685670835e6316bbf14dd91e527b462a461398e1f04380cc6133dd64. 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/AR87Y1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8694df365c0ffd165cf4f090a707b4245f7c0e1418d303a5fe9ab2a1e000811. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/AR87Y1300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb04fe7fd9b5c76b1cb5b00c69ee81680449966f52561cd3507fabb07557f6dd. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/AR87Y1300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd0f0f38f2178766191cfc4b810a27c94813ce3dc61feb22df1ea3df98d1edf. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/AR87Y1300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0e6c6fc78170e77e74f712426a485f85022edc553d68cfee3356719fbb29df. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/AR87Y1300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1381d307eb208500f8934403adf7a2d7b307bd249e2bcdf23e3d98c25bac5dd8. 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/AR87Y1620005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a32f63ad74dfbb75567d11c2317a650ef5d84a3e4ba89491d1db68d6c934d6a. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/AR87Y1620007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1483d18133cb146366e98c71d1df1fed7183bd0fa7de3895e1382f883933b13a. 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/AR87Y1620008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6be42c8b931eb4060d88eba9ed7abda612e926c48e65c11b646a99c494bf28. 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/AR87Y1900320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e59f623c1b4d09f5bd80349e9ee29bef16cc0e5857c3df229a5af2a5ad6151c. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/AR87Y1900305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d235c22a1bdbec42017ef020d25455138fb1f7363b2eef7acacea967c534667. 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/AR87Y1900306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572bcfffa6a83cf106930a3f4f0c0cca4c93e8026921f1c053ebe1abb2c95e65. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AR87Y1900310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b4fd8cc16a62e134bcce333dab6a7ea203c8718ee86461d0db3f3dba1a9f92. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/AR87Y1900301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac601faef2d9f03af9ee1009457312dbe8449f25e0d77cce822911dc0f74e68. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/AR87Y1900302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4031d7ccca6fa9c2d8926fbab56512d16d6d16a9a02d78d130a70caff92a68. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/AR87Y1900303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa13debd387f7f3350e89f3fa943671b39e25dce751c07af09363b1323b72aa. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/AR87Y1900304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e59f623c1b4d09f5bd80349e9ee29bef16cc0e5857c3df229a5af2a5ad6151c. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/AR87Y1900305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d235c22a1bdbec42017ef020d25455138fb1f7363b2eef7acacea967c534667. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/AR87Y1900306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90b0efe2e58fd63f7075b0be0f60d921fd7f3d79636584b55cd155e98af0c01. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/AR87Y1900307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441e644e6c6f1c3b7c45f63aad10f434c9d902829a09b9d94960702d8797e5d0. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/AR87Y1900308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebb59ca64cde0a530e932dfd49cf2f8bc79c522bb8fcf4908dce2fa47fc5e91. 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/AR87Y1900309.
La Chancha Muda (En Vivo, La Trastienda)
La Chancha Muda (En Vivo - La Trastienda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f971cf4a5a1b3be0a2ba572528f578fc86d8796678145ecff2317c8205409ae. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ARF472100182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f152cb046a637610cf5bcd49b816abebc8dc79a5a5bfca990b61f3db87d9411. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/ARF472300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd4ed2a915750e3f7686fa1b9d7861e64b9039ffafc72b6bb6efa2a7d47bbd3. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ARF472300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a67002f402a66e891afaa3b054b42678379bff8e60fd4e07c8059058f3adfcb. 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/ARF472200128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33a2381cebdfc11de0874063d832fdb91e8c39405bc8e6d8110e546abccd161. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ARF472300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d235d8240217812f80ff119b0e30c89436c48bae26b722aec84e044f4fe55f. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/ARF472300051.
Policarbonatos de Plutonio (Vivo Teatro Flores)
El Caos y La Libertad se Derriten (Vivo Teatro Flores)
Policarbonatos de Plutonio - Vivo Teatro Flores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfeb25be09c92e4e3ae1db5c4cb7fbb3d7ec29858ceb6e0c269b3a01577d2240. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/ARF472400254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7703bdf5a82abe9628e4dc688e70a3ff63cac97ad55694f3a795c57400dbdf. 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/ARF472400257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b3a1071d7b727702cbc4acf7f0b719db529d52a898a11393dd0689a76c40f9. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/ARF472400258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d45fbc91357167ae88f5e80d075cc5e7d69c3308e032b9261f2eb00265d896. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/ARF472400259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0d2848d682fc32b0715bdc4d2905372604dfdde7ed9a7a8ff35cb1eb98f328. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/ARF472400249.
Un fuego Sepultado en el Jardín - Vivo Teatro Flores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eea80030c151d2d3c1be82a6e2ddc02d6fd634f0ad0aff6bfce7f191bd75761. 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/ARF472400260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df67f03fb2338bd533910c8b6ded2c6764630f3e855fca55a0debd32e1a04cb. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/ARF472400199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69cbe60543268b717ee09c86d339ef604a6248e254109748e44c5e3aea7d28c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ARF472400261.
Con los ojos al revés - Vivo Teatro Flores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa281133cc8030729c4577c1fcb3bc6df572fa19c8e2f09a7d64a0419afeaeed9. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/ARF472400262.