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 0x832dcce2247b40fa0c2381ed64bacb96569ef158f54ff3f5f92a760f0c2d8b82. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe5243b1-ea5e-43e0-8b96-2dba449cbd8a.json and https://artists.proofprofile.net/proofs/artist/fe5243b1-ea5e-43e0-8b96-2dba449cbd8a.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 0x5b99849e388d44b4beb1a275efe1d3e6a417abe6a89fd45366a8ca4a3990e7c7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FISPN9500132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49563b30dd09415b788a46eb7b2f8e018d235f7c4c4477fc26ec29b97acfc92f. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:24:42Z), 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/FISMC9900106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e89e92575aab3dd84f205cfbe4d97ff61a356dc8c0e26bdb70ce350045ebf6b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FISPN0100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d571eee17549b927133dfb71176be2ff44ee0c69d069aa072eec522096e9ed. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:06:44Z), 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/FISPN0100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1347bf86fe7b93ac546dc1d65d648aaa7515ce8013831aea03d2ce129f1d7a7b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FI3PG0800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ff72bbfd522cc6df1847cefc79167fb6991270d3af5f4a2b49ee948b8efab5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FI3PG0900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05fc25b0deebfee9f3d3a1710962220283aab32e92e403fb8cf33a3e9feabc70. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/FI3PG0900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0d6a456fcd5d8bceb6c13bf4cfd18a09ee0c418d5c534bbb0ffd02f3e9d23b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FIBBA9400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3458b4b13d0778a9f360898c1d1d2728e3757c3b8b8c277af420b362839eade1. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FIBBA9400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ab5d22f9b37dc1e852a1f801177e51279d81150c9dc52caf58103096b39493. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FIPT60400049.
Lintu Pieni - Kaikkein Kauneimmat Tarinat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1647501ff3e3ad253f00a4e3b5124c23dbc8a3deeb23ef27143cb0c3896b53. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FIPT60300181.
Tule minut hakemaan täältä pois - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa116c3345b3a6132eb67a01d80e8467cef1567021b232f45de421b2f44e03c3a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FI22C1000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c42121858ce243ab79e000a76d5a3acb6b5a2cfeed791123a58f9a5b1d3659. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FI22C1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73b68284110aced5f9c9f2f36fb3706128c2b5c52620349cd1d71da915c6bfc. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/FITCR1904244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0e491a6705916b2c2b80359b74dcd6483a8fc4b6e3e2bece9cb6fbb01c818f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FI22C2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d61095c9e3f62f9ff53f0c20fa312b001e3c176e074ea4802f7e33d4ab93cae. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/FIPT62000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6fae5c13c0b84c0aab233ab43a6ee3afa2013de116badfb291c7181df022ba. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:53:13Z), 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/FIMGM2200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a4619cd4202de600bcc76881aced7ec31661a1e5b97a9ff62397965e3aeaa9. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T23:01:50Z), 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/FI22C2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d673f73c8cc60b2f243c962e1be215d4c8d2924e5eeed5e4c69cf0a27bca9e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FITXD2400470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc98d920b1e46da4319f6d10efb2ffbabf1b395a8fe5abccfe34a61455bcb70. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FITXD2500038.
Kansan Laulut - Niin kauan minä tramppaan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc638fede5347b508f14048b19a3707014f9f64612448cb17d1fbc30d8273fcbb. 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/FIPT60500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a498222102f38a3b108c8bd3b6914440035f167687164f250c6e97610673963. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:53:28Z), 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/FISPN9500130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65c55de7d2cd2482742b6f68af11721f69c6a81297069dd0f398cab41bf19f4. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/FIBAR1200112.
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 0xa70575adb4a633e73826bc4792b01c4364ff13df4f6d0e257a9831f8c760b4fa. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/FIPT60500026.