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 0xb9f1d413a4adab17283fbbfff41b7f58b8da775d5fbb3352f2bdf1b220b6b0d9. Chain 2 (Bitcoin): anchored in block 953670 (2026-06-14T18:07:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5992b985-95cc-4d83-9068-4317facc57d4.json and https://artists.proofprofile.net/proofs/artist/5992b985-95cc-4d83-9068-4317facc57d4.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Midnight Strut on Steinway Street (Chicago Inbound Groove)
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 0x4843179aa6938417becbdd7a80cf23fd019bc925d33caee62598a7b092592774. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7X2481622 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00fdd5f5552adb1606da17883516e51dcfa3d164b9f11089c10490867b9c9eec. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYX2557738 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c67b3105c0ac3aff80f2d50b653ed760421e74245e27368e999dc7b8f54769. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7X2481624 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54d7f8b21468c64e33f07071c080f50f2d995ca44dba33f9e2603e67f3889f5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7X2481626 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed545b399f642b09f4d515c36394e3cc71e24e26cece7945cc78f1659da44cd4. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7X2481625 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf486346b4154b7dd96b482caba0717b6dad4fedcaeca7f57bf01b8f0ef6d69c8. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYX2557739 — a six-check JSON result.
Bronx Queen in Pakistan (Vocal Samples by Onijah Robinson) [Full Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82750f665894ee8ef3e95fc263a657f008a9831fa1ab68522f71714bd4b97bd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2518418 — a six-check JSON result.
In Pakistan (Vocal Samples by Onijah Robinson) [Vocal Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3aa6a17d38cd2a18883b4c350dfc2bdf1c0aaa25da0de55307bed25a8277e1. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2518419 — a six-check JSON result.
Bronx Queen (Vocal Samples by Onijah Robinson) [Vocal Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca88f12f626648b9d2d4948b1437afbde6513971a895d8ec1a0fb1a901cdce50. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2518420 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d9219aa6331bde8259d2fb1acc7a3d5dd1169227486a69b2fe7bb2242aef4f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2518421 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fff4940ff67807c2a92e1e5967efc4c9ed50b0ce257878a3c4a449d47abdfc3. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2518422 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2fa855cd20e391fdb7faa9157ed637869d67113becf1fc846712243aefef2c. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2518423 — a six-check JSON result.
Origins I: Life After Tony (The Full Stor-Re)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6852bdae64a425e4148d87f86018e382cd0e0b973a69c0591965a2850af0788. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEM2521757 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4740c401b79f72afcf16ad50ebc1dccc2c63517c64f2e55db68af19427de46a2. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEM2521758 — a six-check JSON result.
Origins III: Fractured Dreams / No More Sugar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5675ea7bfd03c94896749a031103a06465afa5bc85f1056e0e7fa786fac4f539. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEM2521759 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f1e99175f436e9c36d6ff2a6f679f1c2d675456435514be52119de0d25f141. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEM2521760 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1ee2d37d8e3839d38c3a9244261d1a8f8e622b2feb387d8bbcfca29dd7fa59. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFJ2500863 — a six-check JSON result.
Part VII: Running from Mirrors / Don’t Look Back
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece161e3b27957b809657fe70b6a919c30417bf3380485b8890c94c1cb99c238. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFJ2500865 — a six-check JSON result.
Part VIII: Lost Signal / Still Searching
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0945fd1e23a0ccfe112bb369f90e9afadee0095a9c7167ac5367aebf534bbab. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFJ2500866 — a six-check JSON result.
Part IX: Crushed / Broken Halo / Superstar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b2f3d0c14dfc7560de20a631a4a2d20a5e402718adda5fe4299d31fc0c69a8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFJ2500867 — a six-check JSON result.
Dark House King / Charlie Bound Mix (Part III)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdc797f93c5cf74a11a83a9c402f1dd6e237b0ce4569445464a38c4193f267c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7X2575386 — a six-check JSON result.
Charlie Rising / Echoes Before the Crown (Part I)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ac94d4652100af223c865ec12d8ebbd73bce2d2dd471e781551765f1e31c78. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7X2575387 — a six-check JSON result.
Charlie’s Interlude / Fly High, Charlie (Part II)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5a159afc83fd560dd69d9c4b3e56d4bcab3712ba3d0b5dca957d39ec7d390a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7X2579847 — a six-check JSON result.
Charlie Bound Full Mix / Dark House King (Part I–III)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e097dd53845e2b1169dc2e0777df0f13c43cad9b4e0f59a0a313edef335adf1. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7X2575389 — a six-check JSON result.
Charlie Bound O.G. / Feel Good Charlie (EP Origin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbddf63664689723b8364e9242b2d66883bb08b148e5c5630f0860528b3fa52. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7X2575390 — a six-check JSON result.
Life After Tony: Countryside (Deep Country House)
Life After Tony: Spookie Side (Alien Invasion)