1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb7e69f12d1c043744da0a5daeba57e62368cbbac87f12721722f9bd4ab5ff8ce. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41003e8e-2a22-441a-afb6-e1695c0ff264.json and https://artists.proofprofile.net/proofs/artist/41003e8e-2a22-441a-afb6-e1695c0ff264.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 → block OTSBitcoinBlock must exist at that height 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 0x0e3a18499c332e4623bec75ab46749c3b422a3b61e96bf37ae64900f2acab8df. 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/FIUM72300281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd090163e8e761bde25ac5732820c72d61961bbfa600a64386380fc643dad54c5. 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/FIUM72300282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31458b929c997d6ad30d6e046f985f10dc363b84b07f17e3daea3b27747a12d4. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FIUM72300283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45ace907b8b66011d3388414eab95150e53eb9853ca3c142b7b998baea5f27b. 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/FIUM72100227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec463816b5b382be1fe33c43bb80ebbd612c5e377acd7a428a33d44e6cf3c066. 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/FIUM72300284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1b7d4cceecabd6f0eaeee87e53d83b449a36e532b3a09479fa3c44290184e7. 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/FIUM72100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95b902224a72af7f5f4cd366c285fa1fa7c97b41ada3a14b95bb9592e5e6f24. 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/FIUM72200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4761fb4bac38c4d7d41fbce5e630c32ec1a897a3a0ecce9f9b43891164653245. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FIUM72200309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3539f30e8be9bb556c9ac03f52b85e27339f3fb8ee176f268ceea770357cb21b. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/FIUM72000352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6da24636e6030f02cefa0a1d3ff775d8e2eef98e4f6d5ee6ea9b53463059eb. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/FIUM71800474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae86760fab3d17452d7ad7a1aa527a3a67937904d2ffd6ff7680b06e1f460fa. 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/FIUM71900443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9179c3cdbee4fe55578c3892ad6c4538f05c384142e7ae893e1089dc766de9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZNWR2416018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95b902224a72af7f5f4cd366c285fa1fa7c97b41ada3a14b95bb9592e5e6f24. 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/FIUM72200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45ace907b8b66011d3388414eab95150e53eb9853ca3c142b7b998baea5f27b. 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/FIUM72100227.
Pelastetaan maailma yhdessä (Earth Hour 2020)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae86760fab3d17452d7ad7a1aa527a3a67937904d2ffd6ff7680b06e1f460fa. 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/FIUM71900443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6da24636e6030f02cefa0a1d3ff775d8e2eef98e4f6d5ee6ea9b53463059eb. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FIUM71800474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1089c5b36356e7291e926a12bf9ff5cd06a21608ca7a1983413157d052e763ff. 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/FIUM72000421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23847cd286b6ccfd36f37607f9853e15aa6ff21154ec81be02d184aa907b422d. 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/FIUM72000426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010a3fdad8eda51967f13f90890f64cd07fe541fd26970e74f98a9637274788d. 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/FIUM72000428.