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 0x7f80f655f085a2496ec499fdf4a4f72dc3685bc069bc6a5ecdf1752e13adbf2e. 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/9dd5b0c7-6a69-4817-8f75-5373bd29e98e.json and https://artists.proofprofile.net/proofs/artist/9dd5b0c7-6a69-4817-8f75-5373bd29e98e.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 0xce30e60953fc4c2a5aebaf0db5677b3a3e2888dd0e5c6644a2ffeb5787cde68f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BCONO2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ea423b51820392003214bddf7593477051c0070cdddc56c1f37308130773dc. 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/BCONO2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d87e03367150e22e480778e90ff68f78cf1c7d5510332df7b0f6d5be2fc8fee. 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/BCONO2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ea423b51820392003214bddf7593477051c0070cdddc56c1f37308130773dc. 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/BCONO2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7daa5edeaf1851d2acff23ec227fca3476534f5d792a90f0cf98b9cc0830bf. 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/BCONO2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f14ee9b3b49d0ff0744d626264521c834920bebf82e7bed297e867990326d02. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/BCONO2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1197f76dc0ea53e580946ed6cbcb999bd0af616f7bc3b4cfa8cfe6bdb35728d0. 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/BCONO2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d2088d0cff3e28579142dff57f5b4c29992c5a26c2c36893cd631de253f97c. 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/BCONO2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c5d81035ef780ae2eac8f2c312c04f145926da997de09e30b13a2ba97200db. 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/BXJEE2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b616149a85447d97e18a5bf08fd276e6c6736a7eb1efe09c2d3a6f899b55fb. 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/BXKOA2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cee807b2458a91c32cf3d409f5e47c7ec9d511a68c3abee576bcd30a1ec74b9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BXH4J2100013.
Subida - Mu540 Remix - Gravado no Deezer a Bordo, RJ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cfaae200be889b2c02a39b24c5cd908e8d894057c4b2d851016c2a794121ce. 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/BXKOA2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e66d4be49a30540e50313e4dcba03d502b496e741da1318b3f89e6c7e9f33b0. 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/BXJEE2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd33c50aa0d9400c413b46f1a5a1a530cb07a36b9ea66155422533196d434b5. 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/BRX6F2100089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4aedafdd05c327c5f341953fc8058d1c32c1df43793c1f4171445c1b7088f4f. 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/BKGFL2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cee807b2458a91c32cf3d409f5e47c7ec9d511a68c3abee576bcd30a1ec74b9. 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/BXH4J2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c058b429a411096be8e495ce42fe4dac86f1406c4bfaa81848bf370e7057dd. 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/GB2DY2100207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84de0b99562dc264f139b96a5a67569c8c319359a11a0b4db254165d8edce841. 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/BXK142100021.