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 0xf2366f92054c85e979f540af971e7893e8ef481afe573642c5564ed336c1dad9. 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/9a6dd7f0-438c-463c-ac86-1e269006fa31.json and https://artists.proofprofile.net/proofs/artist/9a6dd7f0-438c-463c-ac86-1e269006fa31.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nævabaill og sijllsupp' - Trønderviser med Gluntan
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 0xaf44d29754ed035d5f1b55fa4db35d4af58e96140a522324671279a0de9adc70. 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/NOAFC1000323.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0555e9697d01bb3bac8dcc2f8750d9af1a2ee5bf69725644e4f6c46618d39df7. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/NOAFC1300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1605aea8af18005814159c9dbb03ef187ca2401acee9a25b8446392ef08c6913. Chain 2 (Bitcoin): anchored in block 957705 (2026-07-12T12:50:42Z), 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/NOGTA9422020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3ee2d0dd0fe55848b566ac3f19535a66e68ecd7abb91a744316b31f7d134f7. 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/NOGTA9422130.
Kan noen la meg sitte på til Dovrefjell?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4940cb29c0bfe066883f46d13671c93e1af7da9c523858fc42ddd4b94b72bc. 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/NOGTA9779080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf724f7acdc628c3ee95f7900770303daf37c1c13f30365431e86f05c01417a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NOGTA5806100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08b086906f1eef295a6949d97c06663280b74529416c4c33c8d8caa8f9c8909. 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/NOGTA5805110.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35402032ce6d2eec0567fb4319c7d761fc7b6f30b58cd67dec6816970c01b35. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/NOFXV1501010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bb82445d31eaee7a43a5fc9108683bad71b53c720c1bfbec983d2ab92ec0e8. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/NOFXV1501020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2209ce4c5e841275238bd7df7b2b745e2e234518855ae7dae2bf65df02d730. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/NOFXV1501030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774071c9440f55c47fe84e884ca2503554d86c4c4a5b9a243cc8118885fde96f. 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/NOFXV1501050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7797001d5a8c35fc3d718f06a194d6f5e578acb8e748ba246a4ce7cc535729cd. 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/NOFXV1501070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139f7723d718f764f69ffe29f98717774a43161f7298f9b3b208aed65e1c72a4. 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/NOFXV1501080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342fb6e22b142112ca5353dac4d568b9ff4813a9ebdb76520ee8fec6b10c7d57. 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/NOCEM1706050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d0c4171f01d05f69d6d8c3171ca4887f720af068acb5d475c6b7c2e90ce23c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NOGTF0119140.
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