Coros Unidos Catedral Evangélica de Chile
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 0xc4dc0edd8fde02b96009005406811b72e236bb737eb8d885fefd40bbfdb4e8bb. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a7bdeae-5972-4631-a52a-4eb6e530068c.json and https://artists.proofprofile.net/proofs/artist/8a7bdeae-5972-4631-a52a-4eb6e530068c.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 0x3f94c7b6ecd8b993a4a8dd7617e5b7f0b1315089182e911e8776c928af66c8bd. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/SE6A92081638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc059f9f46d0c32b3896f8f73746c41761cf01bad1822f7f1fac3fd29d54760ba. 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/SE6A92081642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f2809e1bc328a6aa00d6d95f4ef218687f75b7d602805eb1eb209512efe529. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SE6A92081643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc3f2ecdc118231f1462885fa554f1a5164675f223be51689b8101597c2caef. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SE6A92081644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf141d09cb6185227d83e6d4b5b6df9e157957bf04f6f57d6c2b8c23356eb9c0. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:50:39Z), 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/SE6A92077310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b1b817cbff659a07017ed61302f0214d01e5d58ecb67136457b497035a508a. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/SE6A92077311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67501c3d146bf6a7ea302af97028d1620af43a288ec1abbb587638073e425941. 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/SE6A92077312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d214975560280bfa54b7e49b00f28c576677bcae175f1cb394c54b57fde5294. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:28:21Z), 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/SE6A92077314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde892dd1d087282316b9559e4054940cef88f555026600b7f8a95a53d6a28ce. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SE6A92077316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaedd681b42d8058e6b741083ad13317a16270afa993ed2e296bdc18d09e8d8f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SE6A92077317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069b75f43c875720cc2dce3e6739f8b9a56553f4f9fd66171aec1c03ca1f4f5e. 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/SE6A92077318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a87141b17b51ad137cbf3efb96dc0196ac9c30e70814484ea2010e8d76ac6d6. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/SE6A92082040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd8666743ad5d2423391ae95c34ddfd1057d6e1f566c5637d6eada2f5a77091. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/SE6A92082043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc60b78299ff945364e42fc14f293d4d3b2860816ef045ae91e4e2cb03b2137. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/SE6A92082044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c51fd0618c7f68ce1541858a1e5db0c108b1ec6154a28bab09f5c1260e84d32. 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/SE6A92082045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b38392d20c465942e4fb4e657448ca2ada5aa60574fb96cc86be55eedea2307. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/SE6A92082047.