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 0xba0e6c259fc3506b6c34418acf5e227c664ebf1ecd092620f3c2845ac4995a2b. 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/8c601e1a-88ed-4d0d-a653-4dc2e0063556.json and https://artists.proofprofile.net/proofs/artist/8c601e1a-88ed-4d0d-a653-4dc2e0063556.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 0x9bca34b665bfd75195c28e4152786ef53dcfe2c70a4935dc09acd678c8a82e3b. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/QZNWS2120782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a605ae4d4b8414853c9375d4096f448511935f6c96a614536eca48d2fd282e. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZHN32224440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7257546225fdf7cbef125495b03e794a01736a074f83e7dc155bffb49d560c19. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZHN32224442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefffe10704d661ef5c93bab16a2432634ba7caf35f86d2425d0e787f8117164. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:11:12Z), 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/QZTB52265045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3256571b5e8f04a83beeafa2cfc5cc16500d77d54b08d0659c104e1a659d6a. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZMEM2445142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a8bfdcb592682322b35c5453ad470c04857fbb91c342c94ad04a15a5fd9aa7. 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/QZMEM2445143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed278b2c88a5a719c3e2e3ee0a901dd85bab20a0455cf3deb2011b982e80b374. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZMEM2445144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c1a2eac41724828d427b30e06d774e07f2b9c5408084ba7929ba32db03633b. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZMEM2445145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e81f76e5acf61aa57b3714eb67c7b4e1843b0cc033ac430a4349dec499a039. Chain 2 (Bitcoin): anchored in block 957826 (2026-07-13T08:56:09Z), 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/QZMEM2445146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58934db0303d4ee70662970066e8f14f584a2b104192105f87d500ed56f6799. 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/QZWFR2450499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003ceefdda59f2f7d1e6b929b6d16b3e10661259f168e7efaa4d75750ceea597. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:10:12Z), 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/QZZ7L2455831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5bce19fed26b156dbf6a3ad31eb92175d524b7efbb9a2df02c6bfee703697c. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:23:20Z), 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/QZZ7L2455833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde0affbbd026169eb1d0b0b31847fe3347c07b87a2cc1ef7acf326fab7dacac. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:06:05Z), 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/QZZ7L2455834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340b1891660836f29470b894e780a79d12ad234fd9b1935ad8832ef2b39ea765. 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/QZDA72582758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f2a12259251f81e2f76362aed2f19eaba0c84dd074a37323976488deb2e62d. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZK6G2542778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30b70a8fe415abf8d75b22d1b080473407f7cf2cbde08398146d7bb8175a42d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6G2542779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31760d44bcbe7de6e7f32b96ed5ae8725164d67bf2cb512c4eacab2c90a75a9b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZK6G2542780.
Foniklab Records, Vol. 4 (Compiled By DysFonik)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48674425ce420957dc58d249623bfe49a3321edb37fc571d6c4219294fa77999. 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/GBKQU2432670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d93d2118ed813ee8b4bbde705adebb8150d8d7d73508933545896fbd8fc0324. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GBKQU2432658.
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