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 0x36560c607ee7c905b9bf0886b5a14995c0e44e262db7f07e03132034a20834da. 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/9fc97e90-ea02-4a8b-94cf-cb6d11e66442.json and https://artists.proofprofile.net/proofs/artist/9fc97e90-ea02-4a8b-94cf-cb6d11e66442.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 0x1086b68013954ceb8ebd3fbd41896416dc415ea6f204154319f113c8be2ce362. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:41:16Z), 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/QZMHM2455412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe134bca09f50fcb7853010dd33f3fcac296855d7383174410e94f9725bc5e57f. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZMHM2478302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581bbb9cf42b4a6e13782a5bec682a436983373f1159de35194dfa31dee1b890. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZS642466472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214c57e987137dda792187f5aabb833905498ea50c17ef002abaa682285c198e. 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/QZS652407481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac4361a954740ed564a95f731033394d298cd0b93416f81fb033b7cc7035d8f. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZS672499119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270df9da1344bc832024758b4e8f6a9ccf717c7922488eb318101a885959fa73. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:03:21Z), 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/QZS672408192.
Inwiktus Wokatio XVIII: Fridolin Rosenbusch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf899ed3e0aa65b277ffc3602a325af6882e431522f3c252bb729c5066a8a3367. 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/QZMHM2457074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce24c5b008bc5d0179231232f81bd266e2b3ac9378a91f4cd141bb2aaa4f8bac. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZMHM2465263.
Inwiktus Wokatio XXVIII: Teufelsbürgen Diskothek
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ae0c240948706c0014ac8beaed1a4fef1595c8a5f7928db6dd35ac5ab21462. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:02:52Z), 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/QZS642461761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f64967470b169e4386c2656252a7864542976f6936be2068ea1a9cf9b1efa8. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZS652419324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda90c1403ed39f70b52e846ca72511a8ec4cff7c5db580c2930b479f064b5523. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QM42K2463729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92473f3ed494aae2533e729b4d0cc4df73d3e0c13ab30dd7bae27e1968eee733. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:38:54Z), 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/QZS652442221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372eef9cd276032f27e5b6a17ae857f361fc0c631b6acac337a8b7627f7a40ea. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:01:10Z), 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/QZJRB2543602.
Zapotek Sechstausend VS Grompert Neuntausendfünfhundert
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc459af6080093b83dca677b8e1431b09d0ca31b4bc508ace4b7e584823e470d3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZHPJ2567175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3074369fd3a394d68f82f868048454b55efae22345bbee3a7a8a9977645c419d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZJRB2542298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f2ccfcb6489517d0fe76dec66630992fd60b6f8c316eac4c95f4cebcc660b6. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZKDK2572019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85d424a79503bd6ab6f9de9b0cf3d9423507925cfa95388760dcc85e9ca7ead. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHPJ2538030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666d4b1a4683e07e32948470935a6004a2e2246b6b21be7a042c8fef445368cd. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZJRB2524433.
Limitless Offensive Force / Armour Strong
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e881c0b85ff0c85b5416f2b934c7f3e24087efbe9497804c0064b2ffaf963f. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:23:42Z), 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/QZS652590454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf896d4ffdd4beb457619d8e21090bd801189eb8c339c6a1ed4db07b88baa172d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZMHM2511134.