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 0x5be6040f07e82d5c0424a90dc27cf660ac6575193e027bb76aaae9734263b4d9. 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/989bbee2-3a09-4da9-9a5c-b84a2e53f12d.json and https://artists.proofprofile.net/proofs/artist/989bbee2-3a09-4da9-9a5c-b84a2e53f12d.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 0x8836e081fa08a319fc93a3cb81b138eb7ac31f69f24b9dd94b1c70b6a7bcaa75. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNW72377014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bb69b4774b9d222d3cdbef1f495f617df4faa5d58e50a8457cd65137487754. 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/QZNW72377000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf565e31e52304a7ef2045f0d6f63bdf1bb5775960058508df26b03ac96e556b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:15:39Z), 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/QZNW72377007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18512777d423b461f2393f23adafd71de6375af7764884776b684846a152369. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZNW72377008.
Feliz Cumpleaños Carlos Miguel (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2947e03defaf0174117eb9b483e9ae8fd17577ea2e81d3d3f7c3652176cf9dc0. 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/QZNW72383086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2947e03defaf0174117eb9b483e9ae8fd17577ea2e81d3d3f7c3652176cf9dc0. 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/QZNW72383086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe7bdc01ffe6cb2328fd6f80218ebcffaa5ef06bbfcd4dae28b6b8465073720. 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/QZXLZ2306649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3299bcee79aa19bf52af29565a73f01ee533473e1e737db28d8350b12c1c890e. 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/QMBZ92323535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc2a00db8ed3bd61e4f78109307e54e0ec7d79d6fe1b1627a0bf562d7ef041f. 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/QMBZ92366187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ac396afed7e6d332bf10d0516a93a37d8a413949495bd4bfb3bc80b72e28b8. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QMBZ92366287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ea5f7cc47f7e095848ee8b4c54c1f11a5b6f416699feca99ccab7ff62839fd. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:39:37Z), 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/QMBZ92366227.
Parranda Samaritana: la Cosechita / Mujer Samaritana / Se Rompió la Cadena
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1c6fa6593051e50ece09f69ae446ba78b0aa5b7b3983be96401e629f06b89d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZ972308221.
Parranda Samaritana: La Cosechita / Mujer Samaritana / Se Rompió la Cadena (Mix)
Interesada / Cholita / Suéltame (Mix En Vivo)
Interesada / Cholita / Suéltame - Mix En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81fc8b38e99df69d14fb2bca5775e695122a2aa1bd218fbd69271ad16148bf7. 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/QZ5FN2479840.
El Abandonado / No Vale la Pena / Tu Camino Sin Mí / Loco Enamorado (Mix En Vivo)
El Abandonado / No Vale la Pena / Tu Camino Sin Mí / Loco Enamorado - Mix En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54ed973105c76a19d484e130bb713c88ac1e99d5fc4ecd9adc12b47a51a202b. 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/USLZJ2434319.
Amándote / Maldito Licor / Clemencia (Mix En Vivo)
Amándote / Maldito Licor / Clemencia - Mix En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cebb765a30236de2601e836ea8453c03e296e7bbbe492c635d48512ad0ff54. 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/USLZJ2466228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfcce770249930d0ca8ca9d42bc1c855f961d9b2a21eb035e0d73b5279430ba. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZ5AB2481345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b297b7dcc0313fad41e31647cbfc92485c24e06e0d7da6654e2c64ccd56ef7c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZ5AB2481334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034090e77d3b998fdd8882053d6705341a206f44ed4f695e5b511d47e7e8d8f6. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZTV32450131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0c3cb7046710352ad7c95cff8ca0b1645440f9776d685b651a067ff8bbb3a8. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:36:46Z), 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/QZTV32450136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537afeff59e12522cb725252bc0456db0461327b22995705583e69f844eb0ea7. 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/QZTV32450144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f12a70e08775e5a5cfb6f469a63f26b90e54a4e39acf696352beafd70ddd59. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:43:27Z), 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/QZTV32450147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794f36a28ad4853b89ae8fc12bcfa44a024d25bf6ee17797f066fa3be3b85828. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZWV32538463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6912c14f58e4c4153aca06253f9d9512ecebdeac5ac0b2e41305508197968d. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:03:12Z), 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/QZZ8B2534118.