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 0x289aa0c09008bb26b1bba74a4f045830f009e80c0273c326cebe6b8260882d51. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79e33b83-db89-4191-b8ca-59b3c5df7b51.json and https://artists.proofprofile.net/proofs/artist/79e33b83-db89-4191-b8ca-59b3c5df7b51.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bag Full Av Våpen, Hodet Fullt Av Dataspill
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 0x37151680832ad3077cffa6e25cca6eda6e5356f3e64d50633e7a81b6d2e8bf3d. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-17T00:14:52Z), 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/QZHNB2324641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fac0bffa0618461ae3767746e98cad90e1b758ba4e322d78bc20363b1148fdc. 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/QZTAS2368816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe871826e774e87b67bf84c6383f0cdf5080dab46d4f412d0708473a9d6dd18ea. 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/QZWFE2357829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc023cf06130c73bc80db7d3c85f01501a5b3efc5c429e2d1307cf97353dc75c. 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/QZHNC2471966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3458398b81b59a68fe6508f9409b705b83631a1394b5a976caef35d354e8c3c. 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/QZHNC2471967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a5a64e9ccb2fcaf95ecf386f659fdd39aff571359cf2826ba9504d840ed92e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZMEN2413696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d099ae2dabb516da94409a6e1ba3075391c5a4cbfd53c9d697245efa9a7a03. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZMEN2413694.
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 0x14edd3530e1b3d2b3df428c2db1b0742533ab3f81a829779af8712bfd01317f4. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZMEN2413695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c6eab657178f9e22ec006155101618425fe3ba034c4a90f31e4a6b7c5542b3. 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/QZDA42533163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93c9ae04f04a63ae786ab2b4c858eb2faf7ff917227c8935a6d0468610b0513. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/QZK6L2583624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b36523c90f9ec6dbfab68605e91f86059107ebabfbed3a281943751a52ac08. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZK6L2583625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f1196f61f354f4b76c1520867def7a62018ff8cb4d029bcc87d80aba0f6275. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZK6L2583630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589f80678649a78ebfef2ed69f9ce2d14da35c2f9ac71200e1c77d7947f391f3. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QZK6L2583623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a0e48ca30df09a8b0222031c8409976081aae0f24c1b517fe566801bdb7e87. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QZK6L2583626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96cd89423a2d9513915f9f62c1b942f7af051835225c5d6b1a741a43d4de45f4. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZK6L2583627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd06061d59ecfd4b45c4d31da66d491828e59f181f6e81d02145f9755d3b6f98. 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/QZK6L2583628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf741508c37acfc58fa472ee74a96f5e36152bb0759b80807c029fe9c8b30545a. 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/QZK6L2583629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd79f96d8fe3a1908e286572bc351b2382e4dce5b85630b866c67b520344b0c3. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:19:35Z), 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/QZNWT2539861.