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 0xa360521f5e9935777ccd29a6f289f9ee15dfd982bca5496a56d250bb35f560f3. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d6ae1a3-cd30-4b52-bd21-29b7b66b6d6f.json and https://artists.proofprofile.net/proofs/artist/1d6ae1a3-cd30-4b52-bd21-29b7b66b6d6f.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 0xe2fcd0a8ac745b18d33a12b7c23a8e3901f11e986a56d1eba7cc14135f375cc9. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZK6M2090900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0840f6d3dab8377b7e240f8372f1f54791d4ff2471ea1ca4765e6987d5d06dbf. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZK6M2090901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7646937cc19dc77ca46c7a90b8c02017675efe91fa6dfa4b299b94e3b1d36c0. 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/QZK6M2090902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8443e43c72b0ce2ea384be3c696eb9c8829c8e9ed15cb488534a82d0ad4d563f. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZES72174680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85952d899f8b85ba80f47bf02d5b8d4819d8f49584b20db5c9d7133014d512f. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZES72174681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8443e43c72b0ce2ea384be3c696eb9c8829c8e9ed15cb488534a82d0ad4d563f. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZES72174680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85952d899f8b85ba80f47bf02d5b8d4819d8f49584b20db5c9d7133014d512f. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/QZES72174681.
Bright Lights (Life Incandescent) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79c30d533fc6f5b9becd6899a41f1e547f47d9706f814c35b2f4599126fd16e. 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/KRF632102839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690a411f90e3cdb0e127a6609ed8dc7fd6500bd59a83d9a7c8cdf984f7662b91. 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/KRF632105102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d16eff9d196dd6448a0f06b00e253dc0158926d302b3c0a1bcc9b556f6653c. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/KRMIM2205387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c7d138d92c621940de1e841581f41be57e8e13c5e4256a0777baf2a2ad1f09. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/KRMIM2237074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d258bb49a8139d9c19be9766910597b2d736bd98aecd1d6d613bf57218d1b74. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/KRNAR2233825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a50e85e4c39aca4a93c4226fcc79bff375d20373adab2a56cc53443d0888fec. 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/KRMIM2308853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcee8650d65625a70cb3f967b0711db83da8dce047611cb10f1a5fa75f6b663. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/KRMIM2308855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5697490cccdbc334bf5f21291f5f79c2ac8ff479a0824042583b27c42aed9d34. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRMIM2440234.
House party (feat. Ashley Alisha & Sonny Zero)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82aaa8ae2e003bf60ec771829ff6a4cd64604b44f156e284e5b19441391cb26d. 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/KRMIM2125522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61724f101b5b6bb07ddd009585f2e6785ee5b1420d4c146af082c77c9a468a15. 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/KSA002303421.
Sweet home (feat. Pat Kiloran & Sonny Zero)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5a9420d57be4c336401b543ab165ebeb60c611f3c98dcab2aa7de18f4422b7. 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/KRMIM2125524.
Puzzle (feat. Sonny Zero, hevel & Kelsey Kuan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685006687068d051bf99d3405f6dd4cf15653b52c1762467c475ca380d18a006. 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/KRMIM2343579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57a29674fbc19ed96af82f35dd313fffe1f47b413bc801c22bdca608b7703b9. 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/KSA002401108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f00b7e89d0b0ff6390dbdc514483be0c4a25b81ae403c53928ed5bbf7bbe59. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/KSA002400396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06191691ee0447dc08766a4a332c02256b8e6a683a871ad8ff01142aad82c7db. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/KSA002400113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb011972b7533ced477f039b6568f2abfbb9013e21c849d6867ac613237ccd27d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/KRB472301823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb6244f4b2168eef44b487247d264d79aeac4151d326d216cbf4e3d6b72dde5. 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/KRB472301403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55fd955cd051d42731bf62712efe264c8aa9ae18e5887109d083d7279ff15438. 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/KRB142200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a220dd75c3f579688d9ac713731172b9756799b8cfd9164295e83878c87a4c. 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/KSA002101192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6448f49d3f480053da6467a835aa2046099cf8274506b00b6af40a0992893693. 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/QM4TX2203575.
Selfish (Feat. Sonny Zero) (Prod. Santa Paine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf535c0a4bd9e90c664e110dac9414a5e3e982b4c2fc176f2fc323f7ed6a46d. 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/KRF632200505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b157e1a66776f52befe6439447372c17709e3acca278d986f366f6f149e488. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/KRMIM2201278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7732a3a12d8e1b23ae2c47b967d9663f30e14833dc55046ed00186727ed0a1. 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/KRF632105090.