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 0xf60d9df308868a54d96da02bd742be8338eb63ebb0e1e464fb83a803bdf4c4ee. 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/45a8749c-66b7-4206-8f71-4c2c4d49915e.json and https://artists.proofprofile.net/proofs/artist/45a8749c-66b7-4206-8f71-4c2c4d49915e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nostalgia (Remix) [feat. Zoe Tiganouria]
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 0xbe9fae0ba32bd3e0f6cb2fea9a031b899aa5ca61257cb1c6931191adfa4839b9. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/GRFOT2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6bb29cac4a2c495882ab4c206b8be267edc18a574e3606204b9f00c944579d. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/US83Z2121054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb26f38c6d820cef17c435c1fa7b5f0c07effc5b3111f193afcc8774041e639. 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/DEH742002155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3aa36562f161cb1597557ad131967445b42100f20bef50497e4c9bb4fb64b55. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/DEH742002149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207f2388f585454860c0c4be6d72f9fefe6cfb88fa488dfa2788593a978a9b0e. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/DEH742002156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dea0aba4ef12ed26dbb44cfde23348704c5ad97d643319ab0f683d2f9a5802f. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GRFOT2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a53c3cfb99fc3962d717e3fef983d26f91901ab1efd58a8bfc3bc823a486e30. 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/GRFM12000169.
Les 40 Braves (Saranta Palikaria) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fa321567247ff2946ea03d878f6d1962ce47af88e40e8d6058b9a09d7e9dca. 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/GRFM12000185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476bbfb345c8e4c7a60c39fbd766c9206ed36c872e111bf16fa0cf08b8019a91. 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/GRFM12000186.
La Serenissima - Thanos Kalentinis Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4bcf3b384011caef82348d6c73b15c9184d678a30dd4ea6eea9dd794679118. 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/DEH742007959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9efb034353313d1f5139943c6bb5ed8b1c9757dcc06b8f18e08b702d6e07e101. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T07:27:32Z), 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/DEH742007961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf8bfa58b7d576e8f6f53aaaee0c599852cf93c0a0894391be2a2729da5831e. 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/GRFM12000452.
Moonlight Rumba / Flying Lovers: The Remixes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39c3f09dea168c931521a5eadd50f7450a256dc5bf22b7e94944464e37ca288. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GRFM12000544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4730e5561c26ab8f9b67042778a3a498b9394eed5177a40cec7ad378ff505f6e. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/GRFM12000424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae014d1dda47984d6670c931850249a1d01e7c9aa6668a26e3f6b56cd34918bb. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GRFM12000698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33177fb84cbf4f1e818f41777e9f5fd259075b417ec8b598deddadda50ab2c1. 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/GRFM12000708.
Mantra Orientalis - Elias Fassos & RisK (GR) Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f4b7b7bc5bd9d4f962d6bec2ff4b8969a6e6db2715ee75ffb39607da18afc4. 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/DEH742039877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1064923142813fb493b000ffe2fd7cb858db0b51db430c3f8b2a2c23d7f8a1c6. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/US83Z2212009.
Oxford Suite (Nikko Sunset & Dim Angelo Remix)
Oxford Suite - Nikko Sunset & Dim Angelo Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30bdb28e31ca42adaab8e7ec28bde64c15ec47083a569f3177a9e86ba906544c. 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/US83Z2212007.
Oxford Suite (Elias Fassos & RisK (Gr) Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c83450fa9b1cc57482781c2c460f10c29a44c69f07c0af447cb7b2938fea7f0. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/US83Z2469261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24526f8805d948297de8fc73f8fb308f45b46486ab6ac3ecc0b8961e7efb8737. 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/US83Z2420858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49df62830b8bff915d4828260451a66d0fe5dbaf5d5042db3a7a176a63aab06b. 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/US83Z2421190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5739da447cf99dc491cced6202c2419f03850b0e0261dfc36f80257e447da0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/US83Z2520117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b1308f11eb1f6e59042267f8a4445519c64bfbab024c82066769918c9b481a. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/US83Z2545676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830f557742b036958daf9d94b215881d902e7924b3be3b17a041338ffd79caf8. 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/US83Z2549979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf159b98797965fe860ca10155c7bf34cc90fd94ae0fb186918052b62b2c404. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/US83Z2545675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29f2eb6f9668656e35a96e75c24dfca9e27e37be781b6861b3dca8ef01dab20. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/US83Z2559364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700aa3ca9b67947ddd877985708b668880f73d985c2cc9b1b8ab003319a47409. 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/FR6F31639180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec8154f0212fc5e474da3d0d275bd4fc104cfa906f825e01f2ea9693c727b2e. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/US83Z2235360.