Charliepapa is a Venezuelan garage rock band formed in Mérida in 2001. The current lineup consists of Mattia Medina (guitar, vocals), Osheye Rebolledo (bass, backing vocals), Felix Hoffmann (drums), a
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 0x5ba3374778a51195820d8cdcd3354d336b6d3915e663ca2b5c7d6df9ba1c1f06. 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/99e48e60-3b26-496f-84d4-2f67dc946885.json and https://artists.proofprofile.net/proofs/artist/99e48e60-3b26-496f-84d4-2f67dc946885.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 0x01e49d4cf57e541910351c6e28461c4633ecd5679fe2e5fafe6cd8152cc7c0a9. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/US7VG1662049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d37e7af2993b388aa1d954033bf6a0443495b42536095708f63c5042dbe93c. 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/US7VG1662051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fcc61a382f1873f25f931b16e14742ebdcf225d0e284fcc8c628179b53a7d41. 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/US7VG1662053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd06d71eab8fe111b63191ab931191244535a3faa50ca53ede6efe460a1599ff. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US7VG1662054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ce41178c158173fb093e71e4997e6c0eb71e0e96a28e5ccc997bb8bacf080d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US7VG1662056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ab23644fdaff02fce11090448a0fec51703ac0418eb6c3508bec3d72cd6714. 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/US7VG1662066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7e8e880651092cf89e1e8deb0dc24bd2d51399ae76b5869bb0738469954bec. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US7VG1643780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325b68abe2b441fbbcd8e803c4eabbbd208ff6650c1295cfe67c4360d05cd5f1. 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/US7VG1643781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9947cfdef51a23bf916d8e2cb531d47761d6bcc560ca534da176fe25616daef2. 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/US7VG1643782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c0c160a50201ff99abc7e4e392168b98fb57981f431fa7b5e71ed0e37769d9. 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/US7VG1643783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab189ac40079684cb4dc0a3bdec90d5a6906aeba76755b4c98d0ed4aa036918. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US7VG1643784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0a738da60df0d6014ebaea10338cbb18084ea6df9614b7194fa26c6fcd137b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US7VG1643785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac1cda6f5055697a90eac243496f07d750b2b77f0ae6ffc15cb61e0b109cda7. 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/US7VG1643787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c59e3e98aefcc64b9aee507f062c28ad4c5eaf6067b9c35d47b5e2aa03ef683. 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/US7VG1643788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65092ebaeda421eaf81f884baa9ee90a58487708308e4a2ffdde59b21c7ab6c8. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:24:34Z), 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/US7VG1643786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d9d1e2a30cca5ac700147eb3be22dd9c91e7a69959abbfcf9923cb2c54c0ae. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T10:21:09Z), 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/US7VG1643790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4772fd24ed6283ee5b2b280dc95bbac59a3be252239afdc062330eefc74191d9. 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/US7VG1646975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2963a43ddd878923bbaae9ed8753178af57051861f64a31e2b4611ba9c059654. 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/US7VG1646976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead6da415e919272afe2563e12e4067adb07a539532dddb1807f7f6dc76026a8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US7VG1646977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7411469e059abf3282b0d7abbaa7ae6910556890d47878920b0c014f8cccf55f. 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/US7VG1646978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5093018fe2545addd4a663e536eaa14134d9d292aec7a33d2418e23e7b3714d. 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/US7VG1646980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6fac13783bca525cae49feeffee5f0a12e21d12cdb863899cc95068edc2ea0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US7VG1646981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed23378abd235bf61bc92ed75a2a32014f2c8f897745c75dfdca38eaef373cde. 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/US7VG1646983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a402ed1c1edbf3ee639105d17f45e0be65448b50ce9f14f8ebe78b88a0fc00b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US7VG1646984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d647d98bfd3a8063c30ad3d85da0c983a2f039f20c66d08affc23c4e0373eb. 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/US7VG1650340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7321fbea8ffbdb4883b31aec0b2e3fefb0a1a854290fa285ca3528ca782fe35. 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/US7VG1650342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb8457c217f3df6c803993c737b656a5f279ec3c9437c836544acff612f0aca. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/US7VG1650343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbffcb9c90b932986c9d9eecef0f15d1cc403ec539e6cc14294f08a19d198f3bd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US7VG1650347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3844d0b21c88d69de5906296389f89cd57fa1e12b62349426ca17f525ba170. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US7VG1650350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654567a9d2247d36caf0e9cf429f8031632799696146f55693e29499d60d8a47. 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/ARB621700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb62f688ca30e04533c21d706828bbdcb789d79525e9bafd5d9d10298fec803. 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/US7VG1906993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd1128efddb533b5b1ac057b5c0210ba2a0892b16f929d074db4a9e575fe04c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRS182053072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f14d0c0188764ef7a4497c511054974f82312f512005d4e9a48d779a98c059. 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/QZHZ31996727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd1128efddb533b5b1ac057b5c0210ba2a0892b16f929d074db4a9e575fe04c. 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/FRS182053072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f14d0c0188764ef7a4497c511054974f82312f512005d4e9a48d779a98c059. 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/QZHZ31996727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb62f688ca30e04533c21d706828bbdcb789d79525e9bafd5d9d10298fec803. 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/US7VG1906993.