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 0xd164b798c466ae3798a09538c590f7bec1de38bbf01fa19e6242526a810e656e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/243e4043-d35b-4b15-971b-83fa9237eaca.json and https://artists.proofprofile.net/proofs/artist/243e4043-d35b-4b15-971b-83fa9237eaca.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 0x05609531fe91ae1f49079802d3e7f165894a0a7c9b66facd1eb6a270458733eb. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/FIYM21000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42005f54d5a37b09a902afe29d102f5dba1097025e95a44e615b90a05aae12a4. 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/FIYM21000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c24c1edb98c70194425e1efedd886523a41b7effd1be999a6051318f43f21d. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/FIYM21000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388cebfa2af3caa3e7e7bd7f4f5e19ff95ab1e6524fa6f0f58932d568ed9011b. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/FIYM21000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c874937f2282c054884638d2e4bca28b3fa9e71d1f36d98bbad14dc6a6eee86. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/FIYM21000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0998a23e34222a4d28de523887ce5eb6f06f641d68b7ceea83357549e8335fc2. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/FIYM21000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8439f2ae19a282fbf73662821103838221d835e79c7cbe583e7b68e0dbfe122. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FIYM21000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd321249ee7f3a69d478f5b3ee1ec5eaf84af13ff0e0e8f2aa4255318e6ab2d8. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/FIYM21000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66db043f881c2f162aa6931aa3d92ee6430ec381a57d32d57be50b7e1a6d75a5. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/FIYM21000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67e96ad6feec9119060fb7a54decec3cc93f7a0eda2e8e9bfd1f27d8899865a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FIYM21000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537d9513340e9edd5098878b8ca567c21c568245623e29e8ab7bbc51c787d146. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/FIYM21000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44b08ab0eff8ee5fc1822973c53e99cd1a22535eb0cb8b6688c758eb0a92b17. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FIYM21000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619aa6ef888e9e435ab4dd869b47521634724ea498a2c5135467064a40cc49b4. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/FIYM21000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296562d833466c83e0b070336cc3a3dc34ea2809cda6fc6657fcd53d4b961042. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/FIYM21000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676f88a9c975160da7791816a8a31a4cb4103b7fcceb2e16cf454464859e51c2. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/FIYM21000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd98fbf4102e9bd5888d08b207029e48d3e8b9eb102ccbec71a4ed10091598d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FIYM21000088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae485f862c13c7b40502ba99aea808ac9f1b078aaba26a5d49b10fc571440db. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FIBAR1500340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c9c8b921680cf0f2850d7a293e6a659c7d2c57f95f56c8294535e6e78e1f94. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/FIYM21700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe59afda39091b07e85a82d9b7b2a60dbf722168c80949c36efc10fef887ffc6. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/FI9PF1700125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4889c208ed8e3e3dcba99b90d6d9740bd1ae95b77386e68294e852b87efa93a9. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/FI9PF1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c3f862e8cb62806436fea59e96e57014e511470b6b8e02e44f5ae072cd0af7. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/FI9PF1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabad31135d0a0ff85cdb2c5c6bb1a062efa7658f1a75e1e569b1fd193d8f63b8. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/FI9PF1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49e2cbb8c5e785a30e72a4e7a57d1f86115b76fb0435716b44e56bf52b107a4. 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/FI9PF1800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7c200fe09804eb32c33d4c2fa1d555b444243e8ddceb438ffd1ebc50c2f814. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/FIS7H1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf771d46c70ed3e321762648ccc31b5d37999d94db8e8dfed52e0b37292f696ff. 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/FIYM22200119.
Mistä nää tuut? (feat. Henry K, Mactopias, Kelepo & Olli PA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706f377781367ba0cb5e748d04ff3a7208793108ec8987af5c928ae5a10f21f8. 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/FIYM22300174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8194039f528a48a817abcef83a61cf3a0656bff9149717850db254228cd2b06. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FIYM22400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1feb886e3fb3d9f281ae65630331ab16ed8e3588e6128fbec88aa57ccce22094. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/FIYM22400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe51d7ba8b53989a21f99246b16cf6c81ee8a89888400fd17d3fbba77e71ab4. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/FIYM22400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b58f91f763484f27b73edbebd084f34e41656fb76d03305c41318e65a5fd4d. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/FIYM22400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037d05af566ad0c84852d51796cb909f2dea562e0eea163f1e8b58ba2c0ecc0a. 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/FIYM22400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae042fc2b23627553e1bca3ed9cce785cf4c50daaad8993961817502879f0750. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/FIYM22400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e971dd4700ba787ceb064bc344450a907c8a0e1d3f10f0cbf36a215d14d3c56. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/FIYM22400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52641992c2c89bec14b0f63957dffd6f1b5726874cacd70d0bd541d158c4e6e4. 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/FIYM22400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe8f02fd4c04655613796e1590a39e47cae35574d71c29d72f8e0959a38f1711. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/FIYM22400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88268acfdb6a5618c3eb33e72c30ca816d24562d7e76654026c2716546a5c45. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FIYM22400184.
Hyvää Joulua (feat. Sairas T, Timo Pieni Huijaus, Painajainen, Henri Noire, Ugi, Loasteeze, Jiiaa, Steen1 & Pikkuoravat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1add4f98ba44a7ecfc8641a64cea49ea5c334bc0a9f7f24189fe59b37eac75d. 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/FIYM22400195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e080f40a4f58a3a2b8b46bb5b8e168a99d085cdc5dffcd66f0e81687d101f3d. 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/FIYM21700145.