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 0xbc00af3fd59e1dbb9625be45ad4a4694b7d5ca7fbcddab2f1b3d9931b3c9394d. 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/876cecb3-e348-4f0e-aaed-2ee3dd431c44.json and https://artists.proofprofile.net/proofs/artist/876cecb3-e348-4f0e-aaed-2ee3dd431c44.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ao Vivo no Nunes Clube Torões Picos, Vol. 5
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 0x1f1f558ab141ed887aaebf9d0b3dd42e05195e00bc13e3318e418431225af239. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZEQU2124238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34685bdfb4333de0b6df224ae0aa193670e649df29c51bfa1af3346731a4cc01. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZEQU2124245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054a6a5dbaa8460cb7642bb0e677621fd5f040322ded5b89e04e32ae6a3f361b. Chain 2 (Bitcoin): anchored in block 957616 (2026-07-11T21:52:36Z), 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/QZEQU2124186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97f3b35ef434b6f58f2492180dd901b8372dff714cd24ab755c3d864ef09e1e. 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/QZEQU2144133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30df36a5166cd2488f6a61a793fe2d85d2945f8b04dabe65bfea17dff02093c. 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/QZEQU2129203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40f78e1553a6382990aec28a3501e0e9e4ceb39a9dd379375294be77150789e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZEQU2144232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6bbd6c7f03d13130da88b629f7e52d47a7d3e5c77e720ba2c3155f9970f28f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZEQU2144236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86ee4a941e1eace92daa77e8ed8a393ade7c29ddcd9821533596874a54ae3b9. 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/QZEQU2144239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f928e2dd0f3f9c582fdde7a170316517411314b863ea011cb5b5b4602ada7f. Chain 2 (Bitcoin): anchored in block 957613 (2026-07-11T21:37:58Z), 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/QZEQU2144245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10f5ffe4bf2a98ddb5f68940144a77c92ebdac9a537c3f6682082dd0bcc38ea. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FRX201804149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172da51586077f845cdb42bfb5bf4fb4caa4aba7f722e7bce23d5a544192368c. 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/FRX201804155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d381322946eaedb4c319ab93ea8e4f62495517a76b97acd73ee644da33bfe2. Chain 2 (Bitcoin): anchored in block 957624 (2026-07-11T23:13:54Z), 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/QZEQU2143805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5472b6f3988db933c2ccec10e5c817317eeb6eb41916a828b5c0439e597979f6. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QZEQU2143806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be86be1e30fc8b1f9b349688d3d188b8e96d2d77640de015d504455bed47e1f. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZEQU2143810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09acd906e5cc868e11391b5697e2ae3420721edc7e1ba6a38b2b915b5fa4e99. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZEQU2143812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aedd9ef1e39541391666442f645604152be126dfb83cd63c8474ede92f75abe. 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/QZEQU2143813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa284fb7274a58c9c40430fd76ff9a955b5138ba4fbb907d2cbb5df308f8c47c7. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZEQU2143816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282e0ab96c62170a1a9564e7a25971f4454fc2260db5a828a44f7d6d230c246d. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZEQU2217969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed7a975c01818c014fcea01a92f0df07fa06a9d97c67f06c09fe4aa99fb88f8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ESA112440445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a6b950790c59c5838df8bdf61b208607f7e8f445321bd74726309a875f94d5. 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/ESA112440446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7522931d4f892d543322c5c53171d3bebbc9137e75421eb457ffdc332c4f92b. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/ESA112440449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38c611589f9e59b8da042f0e5047a5652919c87966ff75177e161ace124d514. 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/ESA112572800.