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 0x6544dea8217a48e35b3efa2830bb9bfccd45eb2bd69ff8fb5d0251a49e9cb39d. 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/6376ee67-0b2a-45bf-ae0f-76b8d42b2e34.json and https://artists.proofprofile.net/proofs/artist/6376ee67-0b2a-45bf-ae0f-76b8d42b2e34.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 0xe92e2b9b2d1e79e2aa21bc044fbb06cceeb4f56405ebc1333e9c8649af4cb2f7. 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/ESA112427905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb4d39a9d525ae917342cac5f0c0db4bb3742fa2ebc810a38c02ef3143629d0. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ESA112434090.
Eu Tô Traficando e Comendo as Puta [Eletrofunk]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34776b2e0ed3b699ee942064dd669e90aea3947518673350a49193cf05fb183. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ESA112437279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c46776eba6e268a410143d1fcbf4993bb4ce2feeccab8677fe137a7373bf68. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ESA112446155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aff22b10dead857dbcbdaa6834a5dd8349c520aaa47957bd54d19db1ddb7445. 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/ESA112447126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fdb6599ad8686a25117f9dcc15dbcceb5621aaa229417f89b377ec4cfa06f19. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/ESA112457509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611df9e361f2058d165e703dbd1dc9876ee9b663dd47773c8ffe85d40a44fada. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/ESA112564865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577d6aa5bc7a6fe9d26d9330a5e411be39da2b89a5892a5ee28ad5c29ea55e5a. 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/BXTRN2500726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4b43f4122f2f3779e8bc0e89e388d7f0555394ca8a5a8c05045633644b4493. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:19:38Z), 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/ESA112573145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7ead232a911036937a51520eabe5f9b3717d217f40b6bb5b71c86efaf387a0. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/BXTRN2500980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576df606ddf63f818579d92048d1d4dd675224854d36df4ad0e1e98d51c74e6d. 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/BKSAI2400136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a6e9d8d5dd18e2cdb4469004b413e19c0700fa26f4c6fb2469883b5845b3fe. 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/BCINB2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84214b58a66da506320c37a969a31af642765520f9c443b6e5dbc3deed5004d1. 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/BKSAI2400231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752597f3fe985ec321cea842c7aaf9d59d82f5303946801e8dda69bff124cd4a. 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/BKSAI2400212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e3afd12b57e87d30e219211753c8030a697a641f533f081cd0482d51283fac. 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/BKSAI2400216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774d2a775ed8e8373c520545c5cc6e559ef34e73825287a4f8cae69b55fe1844. 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/BKSAI2400218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e5bb50caa77b1ff23e18f4553b2019c87f2607dbf4ac4a10253e02d9c96056. 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/BKSAI2400209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9ad3ae88aa6b54a9262c8729f0cba8560a640b7b5be83dfe60374f1b318dcc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKSAI2400114.