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 0xcd0438b11b9937318b8ae3f56658be0cb29981e0eb92b741226c9ee6d5c98667. 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/7b4593fc-5433-4add-b28d-68b4b889cc3a.json and https://artists.proofprofile.net/proofs/artist/7b4593fc-5433-4add-b28d-68b4b889cc3a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Agua un regalo del cielo (feat. Pollo González, Evelyn Cornejo, Coco Leon & El Pacha)
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 0x421e07da2a155c2bf3ba01207668d0eda9927a717fa214d96124c3206897b972. 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/BK4DA2418640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67040ee6d423d5474dbd83454b19626a7911ea7cc4d5f1793786294587cef98. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/QZHZ62126918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd562b4d4170e18fb621d4cf5b932f4bbbece19595484a4829e580fd8a8d56bdc. 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/QZNJV2131208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0563559c1bca40005c29bc7a8763ad22cb3f9d8aee59d59e0ebe8b48495f019. 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/QZNJZ2124989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ee827c93f037b1770277d0ebe61ed3ef60905dc9914989dc609452b6424971. 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/QZNJZ2124990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fb0b9ddc626043b0aac4b1d014535bcbb2d37e634c4ee5c84bfb05de0475d2. 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/US7VG2117646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd562b4d4170e18fb621d4cf5b932f4bbbece19595484a4829e580fd8a8d56bdc. 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/QZNJV2131208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcecf449302498ecf2cecee84121bd660d9b9e736679849288707921f1f7c0b. 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/QZNJX2111396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5193a1a7e184a847dfaafe2f5a469c5f8d0407d8ea99df75cc867727ed25b5b1. 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/QZNJZ2124992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b73717aa7e13f1c059f3ff3f2e35f8e040568e5ef5d275f5725c4bc396dcd0. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZHZ32046616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0943603f979e5643f321ae2e0adc426499d6e4e483d26451c8669fa42cbe0ce6. 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/QZNJZ2124994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e930e5378c9764a3e4688578f506ae0f181ddfc65c93d9abb728702c35a8c99. 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/QZGLS2108634.
Los Salieris de Charly (Con el Miedo No Nos Van a Vencer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e0ed8d7211870b9a85c686eb6a4a3f832ef86097c70c60dae16e91d7993e1a. 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/ES71G2153594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc9e62e55f2159a01c7078d4bde4b492724f0f48f43b72d28b4b8f4aec9f99d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZNJZ2124988.
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 0x2423cd58ac825534d026f2e6aea7175b9f94963633ca83602ef3e4e7c1b1ba35. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/QZNJZ2124991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81c3622354d19c19d5e2e9fd4da5162ca4e6eab523a05d6f524523b663d5e2f. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QZNJZ2124993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71172dda90e283e64e04cc155a7123deb7e0db68de01b18774eb83a00316deea. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZGLS2065945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c215b6113c03ae59e4d3aaf8ba385cd190c03fc95835912990c1f20d8bf3933. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZNJZ2124995.