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 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 0xb4cda5756d84a632ee2be45a31ee1661d329ef19503ce9b0e7b47892dc2cf884. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc70e674-993a-4ffb-9014-329218eaa26c.json and https://artists.proofprofile.net/proofs/artist/bc70e674-993a-4ffb-9014-329218eaa26c.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 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 0xbb31c3374a295489231f9b8ecfae2d2a0d14ecaacfbce8da065e22cac2a7f578. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/FIFMF6400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163d4539e61e2f5546ed0ff895f7bacc8d7ee3d741010b587f79cff420e79ec4. 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/FIFMF5201700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b8becebff2ad1dd12886ea71f44c66532845b8ad02029f1b56a84f66a36b4c. 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/FIFMF1230096.
Paul Norrback ja Mikko von Deringer yhtyeineen
Tähtisarja - 30 Suosikkia / Rakastetuimmat haitariklassikot
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b24dd4935bec0fed11e35211f1fe5ff6f78914f4668dc6097bfc870b91c6ea. 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/FIFPS8400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859d6c45c46603d21d407d25fd557f1a54219af96e90b1f8a8b0915038bdf85f. 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/FIFMF6400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ebd4364302b2e037b305951bd5b0f51d49e9a6a462eb5bab46dbfb053b213f5. 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/FIWMA0900257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b2fdd2ada2b70286c4deaf3c5bc697b1ade5f0d548d841089a9f913e9f45ae. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/FIFPS7600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d1564d43d92077fd90237ea86a303072f011050278dbf85c489f29376c09b7. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FIWMA0900260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef12b09dbb284146f392415fcd75d24693e023675a81a8f6a9134cbde7b0fe0. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FIFPS8500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24641030c82bdbe2a3aebcfcb361e4932729481c2c6172d89f39a4ea6d4ef44c. 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/FIFMF6100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c5beaf5bec0670def90d7a64f82bccb2347873770998b439770f0f68f64454. 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/FIFSC6103200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163d4539e61e2f5546ed0ff895f7bacc8d7ee3d741010b587f79cff420e79ec4. 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/FIFMF5201700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa28536c29606488547bb58f16e0d83ba13374760a59f35fbd05bcb2b97b6386. 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/FIFPS4200500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d571f65bbdea70039b4223ea90d3ed897bc8609ec6f427215448dff8e2142af. 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/FIFMF1229477.
Suomalaiset harmonikanmestarit 1934-1975
Keinumorsian ja muita unohtumattomia valsseja