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 0x7ec3996c47286a0e8b66354ea79c3dcffa32bfba10c689a0ef80aa090a8aaf9b. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a005f51a-9a76-4741-93d7-7e58237b667e.json and https://artists.proofprofile.net/proofs/artist/a005f51a-9a76-4741-93d7-7e58237b667e.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 0xbedcfac4686cc486b9ae8ad564e5393bcef20ce5f67e9ac574885a3f5baffcd4. 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/GB8KE2418414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ce084785d5b758acb2c8d9c201e249523a47603f511901021a44440d201b2b. 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/GB8KE2418416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d410f9394e8f85a5ba056a745ab86cae4073ba690328382c55678d60ab2e22. 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/GB8KE2418418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f432635f4c166429e668cdbcc262a68f7e771ccfdb0f59b0d584d874a99e947. 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/GB8KE2418419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87028c54c862b2ba1f49f075418cfa88252f8b75a346c45dc593163c7c281c60. 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/GB8KE2418421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8adb1c0c8a02e94ad79124e03433d4e78298dd329895e7d7af08e1f08f830b. 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/GB8KE2418423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9794774e039871f407257cb85a9f0b9195879d9551ce5d70344d0770973f3b8c. 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/GB8KE2418424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8024727895e4c4c329762093cc0f59a3764675ef1ab15ad100b06dd9b45317b. 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/GB8KE2418426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64518e980b4ae9ead50dbd10f89f13479b5433a2a6165b7a457ca78a3e0f928c. 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/GB8KE2418427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb202c4c854d5221882b14a7f74015b610f8cfd455e94a5bb494dde9c47237dcd. 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/GB8KE2418432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1b59d5378376240ca6ca1e8d281fba601e9678b83c811140df2e10a3ab6e0b. 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/GB8KE2418434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37676e0bf83125e37ba0c8f570e143e83bb01d7429c9540d8656d9c100192445. 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/GB8KE2418435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d5a82429cfe974ee46bf412d5a7686d0884e05f9a4e0695bc3e212a544c045. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GB8KE2418430.
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 0x9b5d9f5e1d3244caaa4559fc27069258707000f85684b8d811614eb1d59095f6. 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/GX3Q92332678.
Serial Killaz Presents The Chronicle 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac54ce1c7a6ea0099f517872763499e19df3e5dbe33d33e80f3cca87e3b9a763. 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/GBRD52400161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a6365f836b53ade7c3d2764146c765e2ae770cfb831dfb1dc505ff42a694d7. 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/GBRD52400298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e5510b202867e1eb5da8ad3f264677510383d9d2e47b3900c0dd28e064cf3d. 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/GBRD52400207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ed613544c24b94428466670fff2da7e4b0cac4428448e7d6aaa8af1a4750c0. 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/GBRD52400201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b371eff2b65067847b1d48aa195acecddee332c3a9d7620795acbd2e199891. 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/GBRD52400089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475a71d366d006efe4998a946ff0abd7326c73e17bd3a0b7a9c500e8d051013c. 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/GBRD52400371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9de8c3c258ccc2787d911c7fe88565cccd1ee3f11325da27d3876908087e93. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/GB8KE2506380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ec0b94ff3e419f2bc195bcf9a88251c04215551d370f2d890a609fc1584634. 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/GB8KE2324383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc107035d0e08e9445d06c37d9076ca07d55bf4cc242977b077c1a729ac376482. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GB8KE2324380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566501ce0459261f26022bc3a1c3da0e18f4ee5c6af9a35d52ed298711742b68. 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/GB8KE2311280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0973497b871180d4a8c06f81beebd0ea8db73b41c9ee47790da5244b7ac36380. 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/GB8KE2506959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9629e1f44c98140421f32c8b27b8931782c8c89a0305e2a8e416651dc962cca7. 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/GB8KE2502974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90d1cbf0b2c1b135e7d312e7337f3bd4967ef2e4ffc5119627a6c81d47db506. 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/GB8KE2502975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb75396fba6d8ca31871a6eff7412a211893ba5304d4634445c7408b3dac68c. 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/GB8KE2502976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6acb469648640f2c15297f58a8ee6e7afd91c5168344f38d96e2649c2a03050. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GB8KE2502973.