thumb|Cain Slays Abel by Gustave Doré Homicide is an act in which a person causes the death of another person. A homicide requires only a volitional act, or an omission, that causes the death of anot
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 0xd6e5dd082db656dfc5f38d25aefb0a0083fab59d6c96b04b3c54836fc3e8190b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4c8fc5fd-41ed-4e4a-9a8b-cc989566f4a6.json and https://artists.proofprofile.net/proofs/artist/4c8fc5fd-41ed-4e4a-9a8b-cc989566f4a6.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 0xcbc57d579ddcec9ed88c2a453b0ee4cfa5b66fb1ccb851b3560e367cc5c21c8b. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:29:35Z), 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/USA2P1917941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbffcc865f7aa272f2595f197ccc89072729b6063b0238f456f56a103853e8a1. 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/USA2P1917973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751f3746d182bdb117e660152bdd6714ceef0613e6ce364e302aa15f583ef594. 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/USA2P1917974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46e4842566e330a2c015bb6d8f6d7a91d990e4f8b7447e53b04beb4921aeecf. 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/USA2P1917975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47dc48838370cf8d7f223b99c97738343cca7ae3425e4a83aa028a54add7d054. 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/USA2P1917976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57e82ce27a3822c85c1ed24c306ab409b9dd46f78c8caaff87bf20b2567df82. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA2P1917977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66af8c241a61b32aef47c8810f905a64b66bdb4d13a50b5f8af67ee08f8bb79e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:43:03Z), 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/USA2P1917978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a7c572a25604b9a74751a2081a5904042068c5b417addd9f419ef9d31036de. 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/USA2P1917979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35fa82bdbe2181804ec286f9a99e740976310f829d0e2bf83dd3929d0dce458. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USA2P1917980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb202accc7e89f82b31e6b8cb9ffaf330989150669a39ff53c4218e37adbc3e26. 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/USA2P1918302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a7f8f3d3463f9d259f7d46b5bfd1f16717521a8acb0e473ebe40034c7c5bbf. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USA2P1918303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa8a23589170010bae3b1baafcd7f596bdba5d757f033dcc23d293d426c6720. 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/USA2P1918305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a71e7f22e6eb605dd4f05dc4900a8960428fe4e4841312ffc58cf20a34e8a67. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USA2P1917965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6f3004bc4acda059d7e1ac5b94eb6d8bfa1d985349eb7cb4d8733fb5ab3f7c. 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/USA2P1917967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9747d0396cd68ce8fc8068716355e760c5d90bd6481c1a67defaf79c52c4cdb. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USA2P1917968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3b7e92eb1d919471095ab19f9954486ad69f19ea69f7bb6a8a27f4c227e29e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:04:25Z), 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/USA2P1917969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167d4121d2fb710beb39a28ba6f9de57a99af11f5c704969b69a5869d5ddd7e9. 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/USA2P1917971.
Barisan Nisan (20th Anniversary Revisited)
Senjakala Berhala (20th Anniversary Revisited)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d049387a45a96517375cdef4872b35dd3efa25058c03f58d3c212f84f7a82c. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:36:31Z), 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/USA2P2458618.
Belati Kalam Profan (20th Anniversary Revisited)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e43a1ae002f7f8dadd228d63c83674c291b9033283fe3b46ff55b058a7ed038. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USA2P2458619.
Sajak Suara (20th Anniversary Revisited)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a4d64521201365fa45034876450c91fd9c6db6071afa33fb5c23172bcf2d32. 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/USA2P2458621.
Garnisun Arang (20th Anniversary Revisited)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94028c8591fe7007c5c593b31ff835cc85839d9a65395cfa1aea9f0b6f9d8ea. 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/USA2P2458622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551135a391dfe91a9678efbbe2099893ec63d4c957120725779258dd4e9cd6bd. 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/USA2P2458623.
Wicirna Sahana (20th Anniversary Revisited)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9fea95e1d3e4e6d033edd8bcf5545ef16d29855bd43ffde085ca58624e8c29d. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USA2P2458624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd503e88d5e3cc01e3923cc768973012cc6d7fa3ecf36390e7910b70bedfa8223. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/USA2P2458625.
Membaca Gejala Dari Jelaga (20th Anniversary Revisited)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f1093f93f7b734e834c5a4b8e2811ba7b684e0db473c1efcc36025efa26594. 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/USA2P2458626.
Yang Bersembunyi Di Balik Kabut (20th Anniversary Revisited)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a5dacb5ccd290ed509deb6bec6f983932492d0bdafbf586af93e840d7f3160. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USA2P2458627.