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 0xf291933faab9520410ddc75c2e33d41071d0e73f781e5f6cccbb7f95e81009c7. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/177f94f5-5f54-4efe-a610-020094b81f6e.json and https://artists.proofprofile.net/proofs/artist/177f94f5-5f54-4efe-a610-020094b81f6e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
To Find Connection (feat. Plastic Pet & Ari Liloia)
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 0x90d2b66f855498ee87276c99e4de2454a96456174a16ae0ed59fb028321e421f. 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/QZMHK2414173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba41002a5e13c3249133d542b38a8fea52338f4447af7c794b92367d997792a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZMHP2435345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942d9b4d9932e358b416836e147707b6410017e8c00d0fac5d7aa5e4074416f9. 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/QM42K2390289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d952e792b48cc7efc248e3f4062c556128d94cf1668ea4a272158663f866a9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZS642125001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f64b4ec69fef48b92abd06c1f9bfacd459d6ff37114c66433613605485cc74f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZS652184934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619eee818a65d7f11f6cc3f923dd54bbe33c9aa78f3495217732a97d0a4ed473. 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/QZPJ32174529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619eee818a65d7f11f6cc3f923dd54bbe33c9aa78f3495217732a97d0a4ed473. 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/QZPJ32174529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ca14a782ce193fe6da76e14e750cc958c6be4d4ce40d19df31abcbac1dbab5. 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/QZNWQ2296594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e1b9e8bf910b3f014276af773ad6572e804c6fd5ee8ef465b0d700c5e65d0b. 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/QZNWQ2296595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8971ea9d77e9a00c1d908b6b6416d31a6995a9f3cb3d4fa3784747faafe6e023. 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/QZNWQ2296596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd1ec0084f10942e27f102f99c2d71658e9115bd7c9702bf09675437351443d. 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/QZNWQ2296597.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf3eb8aac7b78d2ee032240de756fc3b550a48e7c672b33ccf1f6cede63bcf8. 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/QZNWQ2296598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa930dbbc6b384a2efcaa644b82d45fe0d148c8564faeafffb401c8f949f437f6. 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/QZNWQ2296599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64fe1e92b84dcea066b3f98cc925d8dd16b19850c87c8f07001e2bbf1f1dfb3. 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/QZNWQ2296600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1823c1873a8220b31cb2fd1cf117cff5c8a62d2db11933b1944597fa8dabc14. 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/QZNWQ2296601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2b6b4cbd50f194c42fffc74b035702d13b38b49195f0e293d3b6db0ab34845. 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/QZNWQ2296602.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591174e30720eb0690b7c58ceccf990a50dffbb6d11bc19661e0313a11f49a5c. 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/QZMEM2230188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c247947429f9f2baf8b363e07667db0339c136d93f33afd44a91bfd75328197. 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/QZNWQ2296603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6a076ac9c2e1802382c5ba5c3081e18ecbdd120eeb73a66c478aa8aa227d61. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZNWQ2296606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe5153383ad89b03c29b9d36e7d653de2dc2896766869c65b31f895db4155bc. 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/QZS642213448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cdff0e55510ac504b1739b2c5dedf39ac43fd424d7598154a07f8c6ec3f548. 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/QZS652232561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b219107cedfed85a0c29c10efa462bb8ce3e05d33869d34ec714480e6eb1dd. 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/QZWDD2499338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932e66449a8281d31f871f35df4b6b30efb4a12e8ea38579ef1d5b9b496a619e. 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/QZWDD2499341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199a86e2b42df35bc5fed1aa787ef433701e976ed0bbae61fa84200a87966dc0. 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/QZWDD2499350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3ca80e02c8b143636173ed01f77a4d044c75a99ccae170f572843153797b6e. 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/QZWDD2499353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782c3aca3f8acfce36944453be96b78e287644c3fdcce6f96625419b920853c5. 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/QZWDD2499361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ade3dd74c1ac70d8c1b9b30c3c1d41c69e84db55c7af404111a037fe5df8a1. 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/QZWDD2499367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af5dec5c949c983768c73d8ad042b9d04e38a3b0646dbe96469233e7575f21f. 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/QZWDD2499368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da5229dec4c6d24e7d9baf86520709dc6af3b2eb0817734a3d669372908f7df. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZWDD2499371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce37b1f42a92eafb025ee7e7c4bb634ef7872139bb58d3e5c91cb2240f3139e. 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/QZWDD2499374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7675acfc1f841f9a10cdde3d65cad6c289b135212586c551e5a8b58987b29ca. 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/QZS672408620.