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 0x35420953d6c938833b9c3bdefa9ec76268c3d42ccc12be8abe8a676683058fa2. 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/9d63e2e0-5013-4e38-a1e1-c836bb004a6e.json and https://artists.proofprofile.net/proofs/artist/9d63e2e0-5013-4e38-a1e1-c836bb004a6e.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 0x030523bb3dcf8dba4cfa680aee2dd81c1d86bac33d1cdaea111eb39ecd4bc16e. 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/GBKPL2004418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cc0a721cdcdf4f13e650f338328e0cde9fe806231c8f01b497a9d4d435bf80. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:23:18Z), 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/GBKPL2004419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489b9fb90ddbbe13607650a8a57f58cca3a49092d2eb1c176e64f3b05d6ac3b7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBKPL2004420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd060a0e1678933c82bbb8e7fbe1ddd75c83563b861745c9af23e9fd11a811d. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:52:58Z), 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/GBKPL2004421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf817b2099d3690cfc91ff8a3041fff7c55bc704e4925ebc3fea85ef02d82d247. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:42:53Z), 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/GBKPL2030300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67481ebd2c8bc94c93f39d4e3c731b0492976e7e56e703dff0fe6a37f9e9c20. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:00:12Z), 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/GBKPL2139773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2029a4720308e4c3b5ddc2d98f7f5261b32124deb83ce769d4d34fa5c85d548c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBKPL2141581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d716132d73a4272087cb90291fdfeac6f05d93b81784952f08aaa37058e699. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:06:21Z), 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/GBKPL2147398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539aea2d829263d52b36f682d4b1bffcd461d85507a498acfea070ea8664e99c. 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/GBKPL2152382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b88b45ff96818c72f204bf0da881e504e89aa35007498106d3b5585c4cae8d. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBKPL2149971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9226a36c1ebf4f0b8bf857e020ca17ca33f6eb6b1b0e98c2253dbf2452ea3428. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/GBKPL2152386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6341f299dc2495e1d2f3cf7d2e74f6584fb1a8fd87f90fc4fce578eced0c78. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/GBKPL2160414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7610923e751dd8948d7e64ff16aa4eaf9189648e2b1e74561e6ace29a33e4045. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/GBKPL2160420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0db3face66c9cdcaf8744f2ad00b8324b6890e377f4bbb1d493f8d2ef91834. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBKPL2172293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a94436f2f33b852bbae2644b7b2fe981ed04ccfff4c54b0c11c79297b861170. 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/GBKPL2172294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30128343ef83468bf4952ab3c4f8a0606581d69a31a0af143f3da003151f25cc. 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/QM24S2201256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c1fbbb7cfbdea07928320411533bae2eadc8137698dd3e6714e53c3ed9ce76. 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/QM24S2203331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dcda167b244799124a65a0b68a46e2e11c8dcc5aeeb10be049c3f1a14479633. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:18:57Z), 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/QM24S2203328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dace750501291da4662e7492dba3532798b789e21288b12327b445534c1bbb5. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/US2J72315302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcab7d486ea0a7125b018629456019aa0cdebbbc77e9b2c7b3e0b80ca79a4849. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:11:52Z), 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/QM24S2305607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dee7a547deb13f152c7f2ef9241043919a4a2e393d7d507336efa1d269f0df8. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:36:13Z), 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/QM24S2305606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90f75321f6dc76197ba8f00db332787f78e795d2283b72cd06427e408cfbffb. 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/QM24S2305604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8eccd148287e4e80b97b69b053a0871798caa705911312366bb4220227d574. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QM24S2400386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a9a1ed1c000c387509a2b5568fb93335640d701d0c008a4757315713c83218. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QM24S2400438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d117b59574ce9e8955dd3d339ceeee058f6b2e6b925ae56259dc3e5be9103df. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM24S2400437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dded75b30c98953fa2062b61a78e207afb7900b6756ee8fc1579cebc969545a. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:46:49Z), 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/QM24S2400436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab3cc7165053c002c331372ac9997d1773435ab50ea9e113b8c650f7ae1807c. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/QM24S2400434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc565f0bfad84e9abf77a76398473d036e2e802276995cf787e355ee7d7bdbc2a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM24S2400433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745d79e427940f1fcf3d22c170531bb7ed75e96909bdf7b68df1a34b0417714d. 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/QM24S2400432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21bf1aea5fc807fb05f2e88b29587f47affe453dcfab48fb6faf7040cdf57dc. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/QM24S2400431.
Sound Is Like Water, 202% THC Remix Package
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472f5daf86ea5fdee6ec701ba69a4e60fc63a6d84465195b06500789171b585b. 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/US2J72315207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa1ae6effdb2d5a25bbcb842582ac7cfec885a33da4c82e6bc146ed771fa034. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/US2J72315202.
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