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 0x4bbb8053242439f944f28f19f435cc2ac638d7da61ada4593c7f5dd50cce90b5. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a0e3af3-bd3f-4019-b5f9-cd119c06850c.json and https://artists.proofprofile.net/proofs/artist/0a0e3af3-bd3f-4019-b5f9-cd119c06850c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Suuret suomalaiset suosikki-iskelmät 1969-2004
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 0xf79b2f98a7eae0fbf7e00df06bf0bcc40efb6b4e8698519c4cf4c044090b4107. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/FIFMF7800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3acce642503a325bc80cf95602d7f3c6cf55a7a341c889d71aa5692a9a2987. 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/FIFMF9800144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab83155a70fdf38f7c0252b242b2b6c93a8a8cbf261d8139e030802ba1d468e. 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/FIWMA0100092.
20 Suosikkia / Kauneimmat rakkauslaulut 4 / Mahdunko maailmaas
Joulun rauhaa – Hartaita joulun yksinlauluja
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae86c3f0426d4fa4bfae0cb274c4a95545eec15ed3cc4829092e1e93113b5fa. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/FIMGM0400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94e426364b7a12c79396fb8e8b5a0bd1466e3743e5dee9c4e650053988f49cd. 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/FIMGM1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ac98517f65a6f6e2d53af18777e75d71f424a6a56644f3a23f2cd7a565b7a2. 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/FIMGM1800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddeff290649456b2854ab61943a793766ebefa5635fa83b64f4f62a52106598. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/FIWMA9900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7120654bf64eedd4f4d31b3c039f74cbe2850c7e0bfe2cea26266bf1ad81158. 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/FIFMF9700303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06bd846461c4ad868f937d9586d71bcb39e483002bdd9f64a10ca01e8840e7d0. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/FIFMF9600444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060bfa46e60990a5c6456fda8fd9a0beb5485710f7fbdfc9e82c6fd75b78c1c7. 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/FIHC82400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c28524d34f60ce33d459b0ed00355abbd0b9acf1d38b9834b6a3017d9911a5. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/FIMGM2300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fc8fe775c8114d53a71864d8ca5375de001d7169ea1dc5f46de002a6a195c6. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/FIHC82300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c16a18e57c2cca83a8269e85fb70e878c9aacf53de371cf9d6c89e9fea5cda. 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/FIHC82000024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fb57361a90850a7db7b4bf9a42b6c164517b42adb971d30a1a97778a5fc8d2. 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/FI9PA0900004.