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 0x2dbed9bacc866069fd038d8815503f55a7f105861beb2633d065a457db0811dd. 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/03f8e41f-fd9a-4090-8980-26d46f651178.json and https://artists.proofprofile.net/proofs/artist/03f8e41f-fd9a-4090-8980-26d46f651178.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 0x242c8d99260c11d1859c4f85ac53ba1d1f0a9bb063bbc65eb6e96f298f81b2ad. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US7VG1589034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84aec587c34e6964d8d54c814f4bce1892ad2392d5df0cef71009a162f732e20. 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/US7VG1504135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c66b7c3389020c71dd4d840d9b259fe2ab8072568a55a6b13b0e5814148f40e. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/US7VG1500583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7448ada957977ffa05ad4abe426ec81650359a6248efd7b10803591a94487714. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US7VG1590123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9841f3bda1ea31e2ea2b1e969e7e0d1197f973451f05fff4bdd269b37d1c6306. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:12:04Z), 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/US7VG1590130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b681d6cb4daa696149a15029152a18046986f071b830c287efea7b130e16ba7. 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/US7VG1590050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342861570ea60038eab4b9d39c1c8080d7599c1c18a1a687d3cb04bbf8c56f09. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/US7VG1590055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7626741dd756cd631dbc12d6ddfcf3db40a5c892d3d1d51f35706dec40a6424e. 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/US7VG1590057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a162da4134c775807a59df8ded9a2efe062cc0b32010f2b72959ea6f6f33a3b. 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/US7VG1504008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca92902f7e646f4f084e512be2b83feda1e62fbd0494bdf247e557c525b713e2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/US7VG1504015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a66daa879dd69cc0e8628d1f8de5b93e7b30fd820bc0e3807da8ef6974fb0c. 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/US7VG1590230.
Antes, Durante e Depois do Culto (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427d1adc329df9934f753f94ee442075d98171df6ffbe50f836684675b2e906e. 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/US7VG1726467.
Com os Pés no Chão e a Cabeça no Céu (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1849c9c5e88c2506e2e5c4aabd4527b5851fb4a7bbddd8713026b97849a5bf3e. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZHZ42023628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82be423c4f000cf0f4d1e79021ba9a0e7d0882a055c680151ec6c7b12a844788. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/QZHZ42023629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849e67d411bf0681d850b556bf077662af135fd1cf86edea21c12920a1fd5107. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/QZHZ42023630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7407c1b867c1e7cf374c3a9decc5b902005bb62ecf20409b3d46f4225eac99a. 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/QZHZ42023632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f8eae11864b144ea92abfc710b8a345a58ef6b63b047325a89e9c421acd3dd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHZ42023636.
Live Session: Samuel Mariano (Gravado no Adon Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9116eb2405fcc840f825a40b82678d57665462ce8e81a2f619b56296d2cb39. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BXSM12500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289980052802495d7b5f9c287056eeba3986ab29ae64511019a51b943cb03ce5. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/BXSN12500005.
Que Amor É Esse? (Live Session) [Playback]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8aa270d7c546377c9e967fec4186ee51d52260e95c39393f4d80443d339c13. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/BRXSB2500066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1030de28b505937e9978188420071e67cf0516c59178856601f911493b17762. 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/BRXSB1802483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2dd66e868bb377283a64e8df62e0d719a9e073df5d53500e2ef63718675441. 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/BRXSB1802484.
Maestro e Amigos, Vol. 2 (Ao Vivo) [Playback]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ff749555b32bdab9668d5bcec3d9ac80945dbad88fb4d600e4c6a8366a63b6. 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/BRXSB1802442.