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 0xbd0479766effdebaff5f8d0baea4d876ba18f4c6f57213571691064138ed3f56. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a24cf198-fc31-4371-98d9-6d1f92da0bc2.json and https://artists.proofprofile.net/proofs/artist/a24cf198-fc31-4371-98d9-6d1f92da0bc2.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 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 0x9d750139d92be59d9b804eefca4509fa3b582ca9651b3fe61c960eef286d113e. 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/ZAY592300099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15be872eff93142d741988b7e986efedcaf6a6bacf1a72cd94253652100c6b8. 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/ZAY592300100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b3c3ba32ec5153594de949cd69068bd782cdeb06334912401fa7fdf0d2b788. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/ZAY592200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3daa6d2166f367ad932287973df5c671ad199b8a5ad5975a7d0f799447085db7. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/ZAY592200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9c64dc4075cb273f1f1ca1d56875da198fc7fe59177d48cd180cac9bf9e3d4. 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/FRX762131897.
Hold On - China Charmeleon the Animal Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547358bd7078ee1475aabc9e91a4def9ab5765ab73fe1959b1d2ff7f9e93f3e5. 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/ZAIFG2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a2d6edcb6104ab346ea92839d3d14818e46cf00cf6db3cfc4a107c6a0d4a4c. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/ZAIFG2000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43cbfdabc509d5728fec7daeebb902186d5ebcdbe764d848822de3ec2be72a7. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/ZAIFG2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b93d6d0abb24e1b6d90a85da1646d8334f62375136e59332dd44304a9809660. 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/ZAIFG2000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3a323e30f8393a2218dc7185279a05e91a087ffd43b85f9b7971a72b15c219. 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/ZAIFG2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78979b8656232bb6bc3102aac8a9feb237627d5850fc5e18efded598944daddf. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ZAIFG2000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2f35bdfe4a07d83f7e3b76f16385849b4fa35e7ae2e56fc0c6dbea244ac748. 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/ZAY592300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad760ca3c3ce9bf217091a921155f2b0fedc810f34c1c76d260f634be60a613c. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/ZAY592300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86a3fa1c8b742e05d214b7e1510bc9ef01c215ddc09e101f1b23369f2188297. 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/ZAY592300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5725ea3489b8e7f37b4f5b663b2276997ab36eadc8da34d3825efefbd9a38432. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/ZAY592300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7778d0c22dd9609ff8394c3d9f29507a1b9ee1887af3a11dba4e6fafee2b50cb. 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/ZAY592300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbc5417785bf1cc6027439c6dd3d4d84084b504ca2e1e7e8924abd27fa4d8af. 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/ZAY592300024.
Mbuso's Revenge - Bee-Bar Just Bee U Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803ad99ff00f4532a05c15e74bdab000114d9ebdeacee42201bdbcd7bc836343. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/ZAY592300130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4aa684b4e63741545c936e831466e77013952a4942c41cd393b2d4cf9357030. 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/ZAY592300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999d07b1198f111f43360e2fd8b1e7645ad62da75cb2ca4729b09d774a884ff0. 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/DEH741803631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa951872bc3a0d7c55f1e19219ad7bd934822dc69728ce52bfdd67f6ce376a8df. 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/ZAY592300045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a181a7b9877c2e34c808ecd535524cc27180ccd2d3de7622dfb96a372a2f97. 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/ZAE0Y1800017.
Selected Afro House + Deep Grooves, Vol. 1