1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xbe7f33a65d6cfab9f2c1a13ea514cb0eb04f78e3bcddeacd9db27b443b05c7cc. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc2d8cbf-370f-4da2-814d-c6dc4a776572.json and https://artists.proofprofile.net/proofs/artist/dc2d8cbf-370f-4da2-814d-c6dc4a776572.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 → block OTSBitcoinBlock must exist at that height 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 0x8e0da2b1948a27368f8104be51f65622eea3fb90f45f9676486a98b8e7b16feb. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM4DW1573695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064ec55be44ddac8c51012650777d0262bf5b365eef4062983a123b6808c7a8e. 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/QM4DW1573698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f98278f18144f22e034797b015999b866b88d4e445c7931fef2c6edef1e4b0. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/QM4DW1573699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24825e7dd532dd0a442693c8a3c297ff0bca450acbe8830fcc3e807ba7078db. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QM4DW1573700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca71f28be45f0771062b462dc3496afc7dfb3ddd7541c00277c478286ff64ec. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/QM4DW1573701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24b215491174eeac8ce508d045c80ab939aad67f06f0235c1c6cb7f865853a3. 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/QM4DW1573702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6382ee043179764a0351a799a7559b3af0587803c7d661512578e67fcc1fa5. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QM4DW1573703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379df8e10c1b2c474d7b9a0d8ba0435996a9cf9579ccd5167b5b10f776f21e28. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:28:59Z), 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/QM4DW1573705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab70fcfd7d5a269d0e905020d1b9e47a5d3323a756ef1865f9eac711f0c5a09. 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/QM4DW1573707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93808f84339906e683055006f633f77e64f946133c87329ac3c61cdea25f1173. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM4DW1573709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dafcf0f075c2aaa6257d2205896b61068cf09a18eaa1301e368f73513fb67ea. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:23:52Z), 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/QM4DW1573710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d12367d47abb7cd1fe496a3e3923dc12924f3284b78e9533491dcc97666ff97. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM4DW1569424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e24c1bbdd373fb9496a23e6572ed23e113a11ebae4d8d350b6e87ed376de1a. 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/QZK6L2074047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb179e28cd0feb8d18265c03756ab70ee790296d027ed9a73adb13acdd7063f3b. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZK6F2030364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758095677f830333e1edb39d49b8d502c25ad9d99db8f8009741693e48a53ecb. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZK6F2030366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05e2dcaea53b40b9fef4a9e73364fb65ba0decae1c40e1dd606a28cab6213f1. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZK6F2030367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc943fc05376721fcbe1888bb4b9307f37da2e3fa919592d8066d219e52b228. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZK6F2030368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482cf27774aa6d156daef9be222ce47e09a4b0be3c419d8c7ec35f65a29166b4. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), 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/QZTB32248596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd938e842a50edb54e26ca052a7dc001ddd4dbcc50ac4dab7ff25209ef540c456. 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/QZTB32248597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71067319811fb247baebe901b321381ed9906deb625ce3a2155dd12547c94c33. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SE6XW2413032.