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 0xa20af9108454a5d8d68fa10e2209a0b1b9add75fb0b1dcef8198b8c9060e8cf4. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d1214a2-1035-4b34-b3b0-0f5459e1a19f.json and https://artists.proofprofile.net/proofs/artist/5d1214a2-1035-4b34-b3b0-0f5459e1a19f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Juha (Original Motion Picture Soundtrack)
Films - Musiikkia Mika Kaurismäen ohjaamiin elokuviin
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 0x1532b6834984f2181953dc1bb0bda382a25e8b1af49886e7a5617b84b2a4d055. 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/FIUM71202098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22f88c1ae6fb8aa09a58768be0355bd47796797d1feed1a2ffced5a2d524261. 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/FIUM71202099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784dfbac35add2778551ae05658140717f53f36f884bdef091c1ba35667745cc. 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/FIUM71202102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c0fc0fcfbcdb5f3028f7f14b93066d1fd2a1a4a82d10b938d8077100d4f85a. 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/FIUM71202103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2188500896d148a7661efd72c8bb37740ece853c43b0aee76bbbc9072dfb3f8. 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/FIUM71202104.
Balladi elokuvasta Klaani / Ballad Of The Clan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a32a987cfca51ab01c017d6eff1865646605ea1203fd965f27484f6f1ef1d11. 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/FIUM71202109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8735aac5b64e72530e86a554a645e76adf3e280eb77ffc20f189abecf8885471. 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/FIUM71202110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c54885097052025081dae36fdff3af5190647139668c66e0dfb08b08d2d4984. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/FIUM71202100.
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 0xff03ae5d4ac3d777833a1371ae198664190b0e3c17e96f45598d118245a82cc4. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/FIUM71202105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4be444f378bd7e8532c3931c4bcefde13fa525687e5fdc2b2c2d96b0b86ec1. 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/FIUM71202087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876c437e30b9a40f889bba76c48919cea6f4bc1fa8889d5b81a49d0493bf4b56. 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/FIUM71202088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ef18d6f7dcba268c9d953853e0550e3880005f8f1258a2f69e488bfa23ecc8. 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/FIUM71202089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcde9a0e3d4ae866b309a7cc3a6a0fe9f6c8c6c6612b10ef2a1d0185543df92. 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/FIUM71202090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4150622f6fb6f24bf64a5f481568d1fcdfcefc944c7b32961ed8a8d0f408944. 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/FIUM71201252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d322a02b5684300964852953ff16e24b420ee6ca58157567d8eaf888d370b4c. 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/FIUM71201253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06381d035a07df9132040400b8046c8213c264dc59948197d5639946c092f444. 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/FIUM71201254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d1ede691ed6cc6064c8885f27b72a7c9d22db8a2d3d117782a8c8c09e39881. 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/FIUM71201255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13dd41e6b4e73f9bb283e57f59ae18ebafc37e4ae0e163f11a1ef36b17f0b330. 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/FIUM71201256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5668cefa4cdfaad6eb16e818a5b4869ee29331dcff1e51691ed44a1fb27110. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/FIUM71201249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820aa3aee61f7fc677c44daa9f6d84a334bcb7b9b985c5f7f8fee65d92ef7a42. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/FIUM71201250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbddd4004e2f9794d5e60f98b878fed23ec1c5c645df25a2a33c854dd763a1bc7. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/FIUM71201251.
Maisemakuvia Suomesta / Finnish Landscapes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3469f92fdf12f97c19f80aeca2348d333ed78d9f359e9c6a7f0835c7e5d15414. 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/FILKA8100481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b56de0fde06dfda7f8dbb1a3af25a287ac64cc36f8fdcf9ce64de46a5ddbe8c. 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/FILKA8100482.
Tuusulan moottoritie / The Tuusula motorway
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc043d2dc09c08c3d9b32e3c8e01ce313ed21c832d92aebc51d2f19d2515d03d3. 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/FILKA8100483.
Kesäranta Etelä-Saimaalla / A summer lakeside in South Saimaa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5154302893a58ff64298f4e50ff9ef9c96f22218a68c381d584e2350ee7a814. 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/FILKA8100484.
Valkeakosken tehtaanpiiput / The chimney pipes of the Valkeakoski factories
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79abbe6507aebf2fe5260a63ce08d40e774c8a4e4edc2a0335962eb39732b373. 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/FILKA8100485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb659e7146b1568f6764595f7020c5ef3ef94713b576d04c3c5f60cbeb45a31. 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/FILKA8100486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61062eb08b638de364f46afa12512e27edfce474a74416581a64703f9951a9a5. 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/FILKA8100487.
Muuttuva maaseutu / The changing countryside
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad721b5ac736c43290bb99aef3c817680c7b35241d8bfb47ab616d6f3a05c61. 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/FILKA8100488.