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 0x91b2dcb74a32968dd60574041824f9269f21ff3313ba4cad0bf925325a330bbf. 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/092234ea-4552-4d62-991b-3f4d5552f46c.json and https://artists.proofprofile.net/proofs/artist/092234ea-4552-4d62-991b-3f4d5552f46c.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 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 0x33d12d35c4e8511273c223f5385893c1e3bd81c2d6b12ae5845805f72f478cff. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/DECH61100282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f8950b87a959255914d72f9f9fde9d43c73194541b33d8bff9e65aa96c56af. 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/DECH61100284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa35325527de70b65103f0b1dc9825e5f33accd680f570b978da927ffd43d74. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU671301853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e8741e425d4f768a6a5d157c8e60404c6960334d8063a062b462fba664ad4f. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DEU671301855.
Modulation Transfer Function - Be Svendsen & Monolink Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c7500d53e67bfd83bf753bd00136348cfad3ed226bdfa5addb1584a986649d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU671402005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b985efdfc8962f2c79957533ce0a7ec1f4db23795b0fe22c6ca1916ce6958e. 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/DKZVA1560933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76a0b81fecee818393cc31951e7a9e3eedc990418459d0e88fd766834969080. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/DKZVA1661201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0f8f2a0d37e7dbac75316f7e5e4d38342d8c00e300f74180b3a7e9c0af95cb. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKZVA1661202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0882038886feb3baff3bd488bf7f9c29a62aae096d08686dcaa84bee949cd2. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/DKZVA1661203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf59c476e64fbe14a3d1dc3dbc0f62de7843658e4c8b586cb2076e7a881ac4e0. 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/GB7NR1743402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21eaf072d33b5569c437950203afc4bc2a0c3b8f556442d2dce3a1935821633a. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GB7NR1743403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49d218f3609858ffc8d157252d1c7d40b58266f97924d0b69cffbdc4fe46b26. 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/DEY471729302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfc8464095776dc255c52dc01432cc1ddc727e153e6a961f997b4c1f39c0bfc. 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/US83Z1794967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b79bbdd613dc10520a0fd6a3d92f2f3be89b39d562af98763660731050e7d40. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKZVA1861827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ceb58949618fdb83b42dac8c669e8ec298aca9627c74091a9085e2364f590bb. 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/DKAZ71829802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25451dd26b2473aeba89af79ca5c520ae95b8317ed2954fb2afd65ae89a50fc4. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:38:07Z), 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/DKAZ71812606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec76e893649d4e05294c82277f1f08e48b5aaa9e033e9b665384af5ace947a9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DKAZ71812609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255e987ae7cbf1ae037787e2dbe1eabfecd7f8491ab3954ceca5b27b664f78df. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/DKAZ71939401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbd27744ec8679c58fec228307c7c5a0b80232d47b102b78d4982c1890cf77e. 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/DKAZ71939402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731edbfd09443dc5a6e9f25f4bbc2d6de64a5e29f12d7c1c5d7c9e99439f53e3. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/DKAZ72042301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd8f0fb0f838326ebcd5df2a156262acc9aa82d561a4ed724639322283e0c9a. Chain 2 (Bitcoin): anchored in block 957830 (2026-07-13T09:15:55Z), 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/DKAZ72042302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97630e16966f20558820efa57f07799b2d497f617ed8ac4b1178e626ee81b882. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/DKAZ72042201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c08455421702aa02928874da7acee4d79484e455813cc1233d10b2092668bf9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DKAZ72042202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ba111a2ef68b9e03940edc4aa2a55893b35be922e3eb75f6183d46d9522120. 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/DKAZ72046801.
Man on the Run - Richard Dorfmeister & Stefan Obermaier Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf033a481bb54dcc118fab2cdf339c8bd7e6419f29a7e5246c99c139f1d7a771. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKAZ72050601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3df82b1aecfb2492a61dcd1b821498b8b6bff67afbbf40b1579caea14367dbf. 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/FRX202119012.
Es War Einmal Indianerland (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645beedf797e16afcd43345b773b17037e91f547466d82fdb6617dd1aec506fe. 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/DEL021707032.
Man on the Run - (Be Svendsen remix) [Mixed]
Alpine Grooves 14 Coolnest (Kristallhütte) (Dj Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5f1954f8d856d8cfa78e8e18bc544f98d177ccc596a01498333ac1ff0a80cf. 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/DEH742227360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e26709a0b9f57b76d9bd6bef5af5d927b3e73ac5961df348c33eda452041dd6. 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/US83Z2121961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d99367d603e120fae5ad0f411fb0b65c4431bfe564dbff6ac16166cfca6467. 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/DEZ651709341.
Ibiza Sunset Dreams, Vol. 4 (Compiled by DJ Zappi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0325c9c78ff0d314534f24cb95f2f62ac55d178797511840bd569db3572773. 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/DEHM81600158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18591e62288fc177aab79fb09aa35f77b395306f6f80e9c19719d864d2e8646. 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/US83Z1777820.