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 0x39a972f8dc1c4e66f957c271a50db7da48645715cdd84c823179a7ae3f3243b5. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6e4fd7e-e0b6-4487-b8e8-05bc792b7e7b.json and https://artists.proofprofile.net/proofs/artist/d6e4fd7e-e0b6-4487-b8e8-05bc792b7e7b.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 → 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 0xfd4ac184d208e5dd4d931cf33b246ea7e3bff9a3135f5b24a322572ec4334f9e. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/FIFMF6500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2637a40fd20c0726d9129fc25ca55f38b51e4003d5501ebcbfe366d98377b0ee. 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/FIFMF1200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515399a5ca77fadb445f044b9febefc67edfdb8d83cfbe7011f3e548fbcd1235. 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/FIFMF6800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede489361b56a6c17d46be0d2329141f2c681c61ff1c94c4c7ee9dabe338840c. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/FIFMF6600004.
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
50 suosikkia - SuomiRockin salattu historia
Elvis Suomeksi - 250 ikimuistoista laulua
Elvis Suomeksi - 100 ikimuistoista laulua
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1dec7735dae73f3481f1c5c37477c432d43c72ff9aad0dbf30bef07206fd33a. 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/FIFSC6500400.
Toivo Kärki - Ensilevytyksiä 100 v juhlakokoelma 20
Muisto vain jää - Only a Fool Breaks His Own Heart
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90dd0a817ba9fce39e40b23dd92a7bd0bb0b469bd3b6b66c4eb90237369e8fc0. 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/FIFMF6801100.
Kolmatta linjaa takaisin - Beautiful in the Rain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9358211824bd1d5ad75effd7f19392ed9f5d10be913d83207fc922c183013a66. 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/FIFMF6800008.
Käymme yhdessä ain - Vi skall gå hand i hand
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68867c1479d3020e4892ed2371d1cce1d29dd242381eb137825d5d500eeb3eb4. 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/FIFSC6800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ae232e09aac37dcad222dffe1ca4b0ad389803b476f1fe914f53769dddb8d3. 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/FIFSC6700900.
On nuoruus haihtuva - Those Were the Days
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25b6dfbb337d9ba037547c63fd42e13201f4e64766f9ffde0c8ad5f91a703a1. 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/FIFMF6800043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad53337a3cd6473635bfef3442018d51bb2b0329ce8813d85eaae40e4353ef5. 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/FIFDP6800600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd192714198b4a7e6924f9b15577db6901ed9612b72738d27f1f8915f6808f4. 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/FIFPS6800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5cf2652582ab9aeb96005dc51636e21befabcb071715404e596357d309ccea. 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/FIFSC6800003.
Päättyneet on päivät - Suddenly You Love Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c13233129e8528226ecc711b86ecf7359b6124a0991acb202df3900049e1e2. 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/FIFSC6800400.
Rikas mies jos oisin - If I Were a Rich Man
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b936871377e553e404ab6d277746c1524a5bf5200f02d8d3e21ec36335e6d21. 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/FIFSC6801200.
Ehkä suukon antaa saan - Happy Birthday Sweet Sixteen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd1cfcf14ec9b4fb45be17ac8fc74f04e297e7958a23cd90b015c023fa914ff. 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/FIFSC6801700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8848c78126191a9f58bf0d52e24c2047162aba2382df040efaebc4a47d5e5846. 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/FIFDP6700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d539c968eefc09712a1dcea78ffde3b74a14e6df276b97c3d0a17d7404f597. 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/FIFSC6700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ae9900e1830021ea6d91260a6979917b2b3f63c1285a31fea671d5da81a597. 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/FIFSC6700007.
Ei aina käy niin kuin haaveillaan - You Only Live Twice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad57b538b28079393c1efadb531ad4c4a3acc33c23cc27b970f8c56fffa72cd. 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/FIFSC6700200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb52d0b00bf6c4a6f3b6bb94268190c5d46d4259f94a591e3ecba6f6f9410b7b. 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/FIFMF6700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0f863c39426942c3909142397b99da975c8b197a1b44b3cf98b3b89126e740. 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/FIFSC7400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac8e6365bbcd9010896d3a228dc9eb0a37e68ba5ed7e6ddbc819fa8a7658bcc. 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/FIFSC6600600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c8d5a771e93646642ba34572c31ffa59bb0fa81db40e50eac948a0dca4a436. 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/FIFSC6600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812b6e499a49842ea0f2eb73491dd6064cf0f7fc1ed889d0ae527a83eeca50c7. 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/FIFSC6600015.
Jazziskelmän kultaiset vuodet 1956-1963 Vol 10
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581a8e8b5fb382253b894e5f27e35c79ba0fb0934b0f449f2429640f96bef7e9. 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/FIFMF7700105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b7a68d86061e291ea2f47af3c3842a1bdfe97b8e94516b080817ad3a09feb9. 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/FITAT7400002.