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 0x7d042aea60976dc51594de5a847706c4af2cdbfe079bf2f1e5a2111932ec88da. 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/2795c7ed-349f-454b-81fd-6f2b2d20e6f6.json and https://artists.proofprofile.net/proofs/artist/2795c7ed-349f-454b-81fd-6f2b2d20e6f6.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 0x874893bad99c7351f07fe67afcd260159a4973c97f658aaca8203ca6856a516b. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZFZ52111274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8116fb78b258c85ec9399710a3143a16dfc4cf95fe64b86390fa7ad702e3d532. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/QZFZ52111275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8016035e68a28f7e0d7d0fb952e468d368cdf9fb63bf6ed191cf8bec6762d0. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZNWV2048073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53e54d3f8edb37b907481496e04868fb90da7865c219c59750990acd87182c0. 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/QZNWV2048078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0616741da28b24c9a97435e8801bd4fd2a6a8a72951af2f1f30ad1875c50b6cd. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QM2PV1880994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5134657ed11ad7b4b0c6e30b0b7c622ff0bd29e385ad8acf5cff4a75dc2a35. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QM2PV1881000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4134456d474b05ffa10165ef67e590e8a314155e5ab00c34bde8e34166910366. 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/QZFZ21917395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061419ee3b5d4ce6f8172ea9b34c9575b43586c2f69793b0f52166953f750c72. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QM4DW1826288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187ce0d99c023de403fb1ca497f54270c9c78b8adfca9e5a3783882254627135. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QM4DW1826291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7d239509ce7fdbc5f0a6a6d44d650c40fac2ee2f3a54b614755d42630d7e27. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:13:19Z), 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/QM4DW1826295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa844c67a76b2338183c63ec6e420defea2c5c96aec1b3442184c46885009fcea. 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/QM4DW1826296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab1dd59034c2876fb3e898ed624fd3b9558a27a2df25fa9222b198ed58729c4. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/QZ8LD1940916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6837fe4f97f56245fab4bcbeba036c1fe54d8ea55cd5f9ed1a65dfb673968d4. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/AUWA01900609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68512f96f3171f6f76af39ce73a013bb1f93a231efe48b408c4c214c54d072ca. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:37:22Z), 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/AUWA01900611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a948c33a95ea4fce48cc8bb79a0d4a83d30b91ce5dcfa5619656cc16045d229. 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/AUWA01900620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9205980885141c548b8cd80520669a2e9ec953a9ee4fb1a63016ebdddd6be979. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:34:49Z), 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/AUWA02200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341971aec5ffa1bf67f4cd0ca29a7e3b243f38e5cd3b743cbd081cf26971923a. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/AUWA02301028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb913f686529c7cc7c7d2d5db0cc052a1a0dcbb018207959bfc557b0306bbab46. 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/US38Y2412264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab1ab40cc8f1e4677cf487a5ecb85d3f3635101e93ecfefc34c897daa8d0326. 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/US38Y2412271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39986b5655a5f4ac2d0ce6ec68ab5fcd8d01c84e92394568f1817fe0fd7c8abb. 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/US38Y2412281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede79d4d13dece5fc6c39ea567ef7ead750778cb5cd8b5fe3ec373952eeb82e9. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:28:15Z), 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/US38Y2412282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ee9c9c9a4800c7756275516b71f316dd21fe28cb064eea0b4fe6839657d361. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/US38Y2412284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841266e148d7ff27ba336f5bdc0a56e8997e6daf548c18de996459d4a5c3a657. 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/QZK6N2204388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70413c9d2025971ea0b42c52fa8e70db27e2f20b758aa311d921cba246da2c00. 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/QZPLR2147941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c3570829ffd490b14e7aafb426048e962f4732b27eff71156dd149189c4190. 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/QZFZ71997227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf53083ce446a2157b0e6e4f0b0adbc7162f8d9419f3cd531182109422d9f3a. 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/TCAFQ2107694.
Model Plane (feat. Bitter Belief & Complete)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1c8f4aeaf0506121bf0279264384f92b4812d86e0c2dff9eab43fdc0736aa7. 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/AUWA02100402.
Problem Here (feat. Complete & Eli Greeneyes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be6770c9dc8187fe25b3a689e4853271d63ec4b4c08bf818070c23821f4f5eb. 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/AUWA02100409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93738cae3bbc811fbacb92f6069c0c57f20820207a871f967d799d86b2566c9. 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/QM2PV1603733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1389204d680c5eb2120d351e8b2f56d420565faeeccfbd58332be30131f630ad. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/QM2PV1603746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33c874a7647eb54cbe6147462a929f5ade73c1e3bf0f21e483edfa0474c0d0f. 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/QZFYY1951955.
What We Doin'? - Australia Bonus Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c855a9fe0885530c6512ef2bf3e0e6c20486eb9b363a3e426bc7d3cbbf43382. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QZWDE2303549.
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 0x3aaa791e8f996746cc039c10a2907a10358137580b23711738ff699309d03657. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QZNWT2143866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101d51bfcb8de7b6b344d22e4fd755696884234aefc8cfaa6e39cb5d753f1bea. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZNWT2143869.