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 0xcb9ea343daf6b6f198a8d318ea420cb684fda0e82dfb7a3c3b1d79dd4e41f259. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6f91c766-2753-4bb7-b515-dcc814d9e480.json and https://artists.proofprofile.net/proofs/artist/6f91c766-2753-4bb7-b515-dcc814d9e480.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Elvis Suomeksi - 250 ikimuistoista laulua
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 0xc306fddc4bdf675e9b277f16ff2d0cb8822ec7f4045a9d0c93aa452be13bad2f. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FIFMF1241470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf894774b7a95bac489e889119c3286c92d035d20bb59351ec523bb72de9cc7ee. 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/FIWMA0700944.
20 Suosikkia / Toiveiskelmiä 2 / Kitara ja meri
Jazziskelmän kultaiset vuodet 1956-1963 Vol 12
Unohtumattomat - Iskelmiä 50- ja 60-luvulta 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bd7df0c823d034dc07ab0145de4368ec25f8371b431e4647640aabf706bcd9. 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/FIFMF5800061.
Jazziskelmän kultaiset vuodet 1956-1963 Vol 5
Jazziskelmän kultaiset vuodet 1956-1963 Vol 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8fab6a2d230a0476a876b0c0035e060b3b60f1a405d21babdfa00f1434f6e27. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/FIFMF6100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb934261b4f6f449d5ea8fa31bccc0d42d42cb7debff5f2f44d5936c0c554a5c7. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/FIFSC6000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580b55fe235297fbe8e5f3b74f698decacebff55fd76a5c1abc2534a9d8244ff. 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/FIFMF6200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2891b352dabd9d9402629ab71a8ff6de2c2e71d674742ebcfddd5ad28f3cd5cb. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FIFSC5900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72201c86286d8072eda2855437a29f6cd0ad3d310f41862dc3b045eb9c6785b. 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/FIFSC5701100.
Joulupukki matkaan jo käy - Santa Claus Is Coming to Town
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997f124561da9c7f53fd1b5b4e59dfcfc244b3a981dc7a0fa5efde0b465bc20d. 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/FIFSC5900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa943c78a0437c21b5116d30791ef8082734eab49b92c28f89e011d4358f8d269. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/FIFSC5700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87d56ab318c163d01a71b9461499c9281fa9ad1fcf79de3a080b041e8a8068c. 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/FIFSC6002800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644a48834c5015d303930a0b87275c32337bb895069dcf85ec0fddff1ad0cc17. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/FIFMF6100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03891fb1f58808e19c5057e7ed13168745e27f7f4c2166728aac067e984438f9. 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/FIFSC5900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86138e2fe1b9548ff712e394e5962b9f5c0a12c638a4402299b9c881b2f46db5. 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/FIFSC6103300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0baff91e767fb1e721e49784b2b28ecaf8b62e4e5c14d30d8a793b1700ee8ba. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/FIFSC5700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d3ee99013a9a0a0e01d4f9523d792a016ff6f0454e67d05668a417c6e62aee. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FIFSC6400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7ff01e54f898f63640749d65bdce7fd12071496b266d11e9766ec102e08418. 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/FIFMF6100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb99c65394245a012cda7ca6b34db4f78b0044d1a7180c5a789223c31422d7d. 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/FIFMF6100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fdbe34379e2f2ad8eeb91f5666e6db60fad55f282a984fa8772a851a5a4248. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/FIFMF5900036.