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 0xe178bb62f7c993960dac29533a734eb3bed0f467a64119557fa6483b4616888e. 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/0a1d84de-3bed-4010-ab8b-49063805ac5f.json and https://artists.proofprofile.net/proofs/artist/0a1d84de-3bed-4010-ab8b-49063805ac5f.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 0x08336c960f465c76a7308c76e8019fd2916da9635f14c4b28ef954cf2a8a4057. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA622100540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e32e299a76a8833b2db3ba944ea82071d6f9aabfce9ced277a6227254c936d0. 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/QZMEM2123100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeec1002b28f4d03232b72912767ecf7c5d17cee0cdc0f0076b71953f1dc0f74. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES72157223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e93d9c86db55d6c580dd0be6adafb0bd3580c6b021d488ad9cbc34f9dedb1d. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZMEM2123104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28c1a07624a510f573669f231b95db11649108c3557e7cb5dc30d3c9f33e631. 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/QZK6H2207064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2261c74b933f92dcaf867b60a4c33e55ab5589ec4ba9f6710c6e15c3cbe952f6. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:31:43Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAX2288687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb482f45de93de98688756df680db3832c7f297fef82cffd3588a4c575e31706. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEKF22300710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba009f16618885daadc2d66a2f4908f16a9dad4bc5998ea09f069777cfd4c899. 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/DEKF22301048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1f98c6ff38cfcea78fd1ea04daf5186521d3a0399d40ebc1f2fe7c11eb7110. 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/DEKF22401064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563030a9fa59c2ec78f0e2f357797fefbbb1f7212aab8aea243e2f4563046727. 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/CH6542246627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b58ce29538606bfa74ec9049d3603f53c6b9810a8c4b3ec77a8b2b3bde03fe. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CH7812230840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d1baa3dfdfb3d4ae9acf4f74bb3674b8a2527002383dcc08b30f8dee695899. 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/CH7812232499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9a6c833616a7835286379ad2cffcb790d5944a02c7144a0df1f8ed92531570. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEKF22401296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf6bac14d32efe946c4f868322f2281119c0172b8e9a58d1a3a7c10dfa97c02. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CH7812230839.
Cypher (Bobby Van Damme, Obby, TANO77, Emo79 & dreamerscartel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5484214b1ed4c5481b13c0b749d7efd13a8a5ea63c92253008c76af72918b24a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812225972.
Cypher (Mohams x Wassim_63 x Emo79 x Dreamerscartel x Tano77 x Yassine x Adaver)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765dec16a121ad649bdc7bdd7fcf1e513b8fb49df34743098700bb85ce84c98e. 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/CH7812225973.
RLR2 - Runde 3 - Tag 5: Wenn Welten kollidieren
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a8a33ce90a381ec93aa701b5a9c2b48e6b79ae400bd63900541b5d4da5c675. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEKF22401933.
On´s Melange Pas (feat. Rua, TANO77, CESO & Mocro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41482165623dd28fa01e15c9493306af59535febc86d5069c4083af98e4c3ea1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEKF22401798.
big moves (feat. TANO77, VS Mosquito, GORGY, Mocro & Silvano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72790b8317e24a7069b4b7caeb04bbcd4c1289a0fa97d1bdfa49e6d10a22e3e2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEKF22401618.
RLR2 - Runde 3 - Tag 7: Jenseits aller Grenzen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c3fe4217f8e123a079f4ef6f43bf72a6aa02eaaa74673e09334f309d0ce0c5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKF22500133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41482165623dd28fa01e15c9493306af59535febc86d5069c4083af98e4c3ea1. 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/DEKF22401798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2270b75628097e53237f8067f1abf73628f1c2d9101c8499dea830f724c5a7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CH7812241352.