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 0x4347f31c4a8aaa465947049d0f3d8e20e568ed4df87eee385e6493da7eba076a. 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/7e4fa2a0-ab1f-4840-ade4-cf57f3e44e46.json and https://artists.proofprofile.net/proofs/artist/7e4fa2a0-ab1f-4840-ade4-cf57f3e44e46.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 0x4d0bcb321d23e4a87be04e0444de7f47596583aaa7394576c74ca1d86042e302. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/US92N0500458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2614f0d6fde337387b8e06a1382b4fd76164e896a1e6f401f07882cf2d12eed. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/US92N0500459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4c8f1da132b0d68abd77a4295b6534f01f6744b75c8b02529b29b365710277. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/US92N0500461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15327de2aed080176fcc45d27058ac2783395fd38d8d1e9ecf8c0b5d1704e2cf. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/US92N0500462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505f1a40859c1acd6c1405abe623ad543fa3117d18134c30f936e57edcff5840. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US92N0500463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65002c90d3f17d8cfcf472af0c2931ca08255fd121b3a352f699c12f4fbbb39b. 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/US92N0500464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482685046ae6b6dd32d63ee4a674d99f871a098ee7a7e6655a004a0bd20dc0aa. 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/US92N0500465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35acdfead3922229a06960eb9abb319640b20b71102cda1152ec550dc30f414c. 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/US92N0500466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27145cd66b8626544d817cf80aa8ac674331b04ae9b21b4ab85007e98ab37d23. 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/US92N0600019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77bc51103e839afdaa57339e481dca610d87382aa0d8ca9fe357566c2a8a523. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/US92N0600021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63237d15e30b5bc0141a681e0c1f4ed8986da54b52a06dc3f30a4d047a033500. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/US92N0600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7761cf294670f0c633876a79e4d1d63042b0f8e4a40aeab826cb2d92c747048e. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/USVIC0734201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e846432775e153ab03ecda79481a11775fd24c25cb79bb9085e06d270f728ab. 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/USVIC0734203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4cdf6dec65f519b4d42bac95612379d2b3ea32b7ad8e0ea73e42981e67f29e5. 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/USVIC0734205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88415032fdce0e508845ac11ec6da6526d2361fc730874f74885cdf2ac0b7709. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USVIC0734206.
Death Ritual (feat. Nate Rebolledo & Armand John Anthony)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114e6612f70b75a9063e2045db3e413bb13d2cd066b9b411ac11b41dd300a5f3. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/USSTT1900113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9134d85471b1f2647f8a4e9c2daf4db2d8eae109aa77fc5f3344ec450ec8b9. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USSTT1900116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a290e79a5aee3bd7fd074b0afadf9da4cfccbd0dbadde2485a73250fa3f997d. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/USSTT1900121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d95304ace399e18d322a7dfb217f4a733a0fa82dcaa2aaba5902d3dfcb70ed1. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/USSTT2400209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a9e8e70448038156a67b7fbfd97a8e56ff5e65177596bbb398fa309dabf0bf. 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/USSTT2400203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d95304ace399e18d322a7dfb217f4a733a0fa82dcaa2aaba5902d3dfcb70ed1. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USSTT2400209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cad313a798e07ca3ba73923f613b19b9a52b0f26d82283abfea302084983ff2. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/USSTT2400207.