Medalla is a Spanish word meaning medal. It may also refer to: Medalla Light, a Puerto Rican beer produced by Cervecera de Puerto Rico David Medalla (born 1942), Filipino international artist Feli
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 0x6cc116f33360b0abe4c1715f2d7141c85be869c00fc9b6e137b0ccbb3d5ad362. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/251ec629-be63-480d-a435-e014800d1b73.json and https://artists.proofprofile.net/proofs/artist/251ec629-be63-480d-a435-e014800d1b73.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 0x07cf9b4503d791865f69f987d8f0115cacde8694a2aed8dc6b1b5bd717360d1c. 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/QM6P42373702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076f62829ea37ee55d97691734d6c011ca59106e4c9bb74ce474db479673e5c5. 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/QM6N22371042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e8de2c84edb10a6fbeed64f02e5dfebf2e3dec6fd42d94ce7e69f8e3d9b740. 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/QM6P42373704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb566df9ee910557bae26b5ac8669a769ee2508b9ba56da4c6534ccab4520b089. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QM6P42373705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c79fa4b767fa6430f746b67f945a5bb15cf0f6723fe6724c76c26f49231c16. 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/QM6P42373706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a17c737da5096baaf921e50a61d126fab0d542d7388c49132fdfcb563a0977. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QM6P42360272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc750ca659dc2b2e6ed7e6cb71eaa522f1629e31c6877e70032daef7d9870cdd. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QM6P42373708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f5237fac83cddbea61b73c15e91b58f8397cf7221a485a15f0c96b398c2faf. 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/QM6P42373709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd2aebc046f9ad591935a043d56e91b26d3d8c78d39a03d3143e03a0b63955b. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QM6P42373710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb21323f14ae7e4beda37fe293873f06ce4a5ac8a49f88a9a062a498b62e3892. 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/QM6P42373711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc7f7ac76b92be6c53cc38adfda15165c16fbafd95ee58237fd62aabb752a98. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QM6P42373712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd9216fb04e39516248506134890825031d4291515cb08e9e2ff4f33726644a. 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/QM6P42373713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e46d1efdfd9cf743fb21d42cfa7f305c8698a2ec29e9c7a90ba31cceb98614d. 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/ES6612100723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e2e0c8375175879dca4a0b72022323f91f17d9b578949b80fe0863c56f0181. 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/ES6612100724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6d34c83296ee8606eeb49a730ffffa5a059ce9604314fdc2bacda829c8ca0b. 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/ES6612100725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf12d1e8d4190d8bd61836f9ac2203ff01a3d458fe963c3ea2a05accb4c543af. 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/ES6612100726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49134ac2b98209d0766a183ad6d483fa8c16371f745ada9a07441ad22a3c1542. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/ES6612100727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6b61de6c95b1ca2b04ee2d90845670794b1c5383f24bda4c90889512b8114d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ES6612100728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7048b8b6da823dd886f3a351445aa076cf5132f49bbd0a1d142e3488d7723b77. 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/ES6612100729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f4791c8b4c1253825e5b297203a9009f1ee094a97a417b1c66bb72d08cc8ba. 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/ES6612100730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe717b11d6aea2b3d4349e851516164092ee18edabc7d3fb4c025aaf103011e7b. 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/ES6612100731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c434eb7293ac8d330035968ab3236199ce8e75ae914e3ddb3d22446f4edd7e. 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/ES6612100733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b092f562b739572c9af6def74e15ab285ffc5ef14efd5ad723689919eaed313. 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/ES66S1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc955074d7fb3231d151550d8b2db518adcea6e85e4d74527abbd052a5a469708. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ES66S1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb77913bd983f59b6b0fdf1df39c9cc143ab4df62354658a3d7528707e70aab5. 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/ES66S1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e454a4e53c0bfc87237ed7b72ef822007e9c6682f747b16271cbc729c848714. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/ES66S1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e42841db8c7d3cee6737e30ddea4b5f9b8fd0b6c3445749c536efb978cc261. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/ES66S1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a85ec37bdca7ccb172acbdb30dae173c2d3f0ba04763dd0c4be9fbf6fdfc312. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/ES66S1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6db7c2a2209d8d52aad73c8d6ce24dc692de35499fdea3bdbca9c8dd96876c. 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/ES66S1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5f984b524c6a29eba93f8f5802dffad78174dfb26e124f5b27e0963131b063. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/ES66S1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65ebf6608f410a5c3a1c02203bf3fa9a072838270c8676212c5b1b88197c8d3. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ES66S1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd331642d415507f4b1a7fca16108c2cad1209e9d354e0bfd7e9347186761ef62. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/ES66S1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f951bc7cd7148539647ce6e17581afc27edb4c915b5fdd0eed8f7f50c812995. 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/ES66S1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9e6eb25f5af4a60f259a5c2d0fa71cadcbfc13396c931e3dbde6c41b749b1b. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ES66S1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac1aafa3f24f18ba1b4a217d7705928543173ea2688f5b8df8298acebead3ec. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ES66S1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0808c3aec3e1127b2781e7c09214be8a2de25b9b8ab1902790877e6ca04ee3. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/ES66S1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd9216fb04e39516248506134890825031d4291515cb08e9e2ff4f33726644a. 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/QM6P42373713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf12d1e8d4190d8bd61836f9ac2203ff01a3d458fe963c3ea2a05accb4c543af. 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/ES6612100726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e2e0c8375175879dca4a0b72022323f91f17d9b578949b80fe0863c56f0181. 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/ES6612100724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a91a930470ec2fdd4225afad3315792efa17132bf17c897b68e4faa6eef50d9. 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/ES6612000711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7669c803a590240157a3dfcf9f9d20bf9321905a9473366af1f22e5c99105d31. 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/QM4TW2088675.