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 0xb132013e461f5566f506de0d4f8cebb5fffebbca550b8e39be0ca854bc7d8d07. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fade157f-f303-4a7c-96c8-fb526a15b0d2.json and https://artists.proofprofile.net/proofs/artist/fade157f-f303-4a7c-96c8-fb526a15b0d2.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 0x12b35a35eadd7ceaf5758b9f5e8973d6747c474323b477c43db58472b7d4b6dc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZTRX2225761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a11caf9cd90861f2feb031d6d6d4eec2b403429dd8a43e2045270bd4dedbc4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CA5KR1838565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7cb26ada5572508bcc65e32fb92cffd3d2591ab1a40dfed8e61b8c5bf903744. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CA5KR1838567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b4597920591ba99ca7aa844b2142652091598d2adf1c3eaa50dfae8e9e7468. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CA5KR1838570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f95eae2c0aba806de6ee3d5a098bd3a4e7e991caf9562ee47e9585de8d3d897. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR1838574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a48d93f345a3c37e2ba6886b0237d3c44b79d735f7ad10ac80712ae2ab0455f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CA5KR1838576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40fa0450cb903885b2fedcb251676edfa8469bd4bb9982698fb94515147c304. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR1838577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c97ebbf2be554d42a5d05ece8cfbdd2601b3806681ddc940e30a5e06fbfd1ad. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CA5KR1839675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69b2f93395f0d8bc2c2cecbd738cf87d391fa23620be69fa22f02f3c7d998cf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USLZJ1922760.
Warpaint Records & Impossible Records Presents: Blood Lines, Vol. II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80c11917cc308332ec22d9dfb9f0112b07c3224ea48ab2fcdc8084e7bf444de. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZS632442365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d9efe51d873931596e48274b363a3cf5625d184fa0b9a8b981c8f79ae8f9f4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZS632502624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6fa37f835480b443fdf187ee24af9e99fdcd01a07ca6ac7af15f789ccf838d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZMHM2575317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7067544c40e33c39ab1b4330e74e6905f397a64800763c5f84da0156b17fed3. 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/QZMHP2584500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8db245c9ac5a0b27e0472628f00f5f49cc8d637768f1f427c7d82aaa03d475. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZS632578424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb8f17cd459956277e21578d85e1e50f775f230bac59c1b87da11c182f90bbc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZMHL2568437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6983a94d66936ff39184dc93001371093d07897eba39354219e780341d1bfbd8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZMHK2592118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ae40a963c94b91778e199dfa5c7e2cd0b23f0ffd0ea4837d6f72e52dd03433. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZS632508000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac82e408330f56b7e7ca50151278d23000e68f768fbd060f95e8573dbac7cbe. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZMHP2538105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3f983f3e4cb8a340d656b0c1026906cf5ebea8d1d0f960671b3e4b27be3996. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZMHM2577360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94d1377c634473dd05377073c663c7c7b9b3b37d4fe9d81d6c9f9477623a49b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZMHM2539784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95bcdb8a19a8ea2f40e0f5c0b861982ad724891a440db2337e83f8aa8bf2eac. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZMHM2540302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af912e475a8e106c6454882490d9cd66db42b18a5d3dd9f014d0fda224daa38. 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/QZMHK2510338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32dd6d3fee65483ab8339b42ad413dcbcc4386e82bc739b9cbbc8102325bc033. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZMHL2590542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d82fa0b0eb6e799466c0480be3776b5305b3e8c99a8e048113f8a673d85475. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZMHM2537665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e2a4183f9c9482e57c71da09bebfa92e7498b8b6f1b769dac6f1e0d01c4633. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZS642575701.
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 0x6d0f1e5a3158aeb2572a9984b88db87d2a9067dd5876a28f689bed8503f89b7f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CAQOI2504202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92dd8d286d770b047f84b6b5d8b402166f46104e503112f2626f1ad0c465e78e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CAQOI2504204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab68c89abe7021c703310b9494b646e5c19816af709840215fc6879480f32ed. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/CAQOI2504203.
Think About The Way (Kris Cayden & Wassa Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e36f44010066e99ff343f2a1fca409562dd5cdbee43e195cc31e722a336670. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/CAQOI2504212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c6498d91a6affb29c143c5064148b1f468d14fe0b777dc51d111fb2533420e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CAQOI2505825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb920580c9862bacf56bffd7006fa57cf544210f37f2ae57b7cdfc868e349f3b1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CAQOI2505835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3456eb152979ae94c9177c2e0964a9758b34bb66d7cdca15e4c948d31fb539cb. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/CAQOI2505826.
Atomic Shotgun (Fenx & Do Not Resuscitate Remix)