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 0x4f6657dd9d6afa9802709be9f156f970cb7c102230131b143e2ef6911fbf432b. 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/e57ceb1d-62e1-417e-b03c-f7a2635b93f7.json and https://artists.proofprofile.net/proofs/artist/e57ceb1d-62e1-417e-b03c-f7a2635b93f7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vem de Quatro, Vem na Piroca (Aqui no Bar da Jane)
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 0x0920e2f60df6e77692f8edc93337d278311718826abbc3b03f02ebd8b7d4c727. 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/BCVK92401083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98cc43fe79d0c2e970ae3c521f5b4120d4fa8e117a6552d0586cd97d032023e. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZMHK2377547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7fd4b2f74992d426ccfcf85e0f83b83420086ab38d343b649765ee9777bf0d. 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/QZMHM2342318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5a4282a096cc352a321e46a49108da9551cc0aefd114c426f97001ccdd0c30. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/QZMHM2300879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40fc7557894b5bb0c3034f3ba6f8469810e2bbf9f20a7735f40cce9ee72b4c13. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/BCFCV2400783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ea9eb1ddcac41b192e144266c45cdbfeafc29b4cfced8d0b95c86575276f79. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/BC3PG2401201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9858345cf5d92c6193b9db5a3b6ece5dc367e6381d7e2463c8009d4a0ee97d8a. 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/BC3PG2402112.
Voçê Que Osadia Se Envolve Vs Bate Com a Bunda no Chão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fb7162fe663d4332a1bb926a171f5035fc638e6040a998db1416ade2f04b25. 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/QZNJY2420279.
Só Quer Ice, Só Quer Melt - Pandeiro de Bandido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff5f48dae7876763b80843b7a986837ab48031dec0504ef2f25cb2071c6912e. 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/BCM9B2401949.
ELA QUER DA PRO MAIS NOVO (GEMENDO MEU VULGO NO OUVIDO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdafc1edfc82c69df8b2673aa7ecba954092dd82a90b3da1d34ce37665707498. 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/BXP0K2401684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0de705ec4d55a8fa4e9e7d6ed7741bc452b7f2f7f211058180bd94961d98d5. 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/BXP0K2401571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0604473925ec01b0addc6cb94910fd33cc80442e72fe5674c956db1f5f716cd7. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/BXP0K2401719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9411b1231638d0726f9a9aa4762fb86153831a49abe8aac2e5ffb2da916f950. 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/BC22C2400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c327a5de2d1df3b3bacc4e4aa0432fa5b4c663e4aa04cd1a69ebf6224a50e6d. 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/QZW9K2432355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5795fc7c4961dca3b1d336e07b80eee767eec51a530868059d9fd1e4587e0776. 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/QZTVM2489766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcd1cfce91f3b385dca033ec5cfd8616a88c5d72cddaeb6ec917139971d3621. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/ESA112449430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92bacb7bb10855ce0ea9848a7b40dec9b2e7ad631681804dbf666a32390be57. 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/BC3PG2203436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe675c67f5c9296d99926c120f8a1c45b328f4ccd528bca2d4dbaca56e4d0dca9. 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/BC3PG2306719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d0fba9bff756041e2ea7ee158399b91342fad8f88417ab9b59a3b58332db48. 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/BKF442400202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69df1fbd41c6bb48304d5f52d666d627d579210a8b66ffbdb78e4b4cc697553e. 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/UKXN22057488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471eea03d6689f45b0a5e42b6093c89e7538541946d632d0d8816fd06e9eea2a. 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/QZGLM2443689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d8c02b314ebbbaa1532fcd7456d2aa2ee41c34a71359f6e7328b09ea872245. 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/BKNU22400061.