EMF may refer to: Computing Eclipse Modeling Framework, based on Eclipse software Enhanced Metafile, a Microsoft Windows image file format Music EMF (band), a British band "EMF", a bonus track
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 0xc23946b50b2c9c195f418c0f3c72b5194bfe56c60415ca17b738492cf95834d2. 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/fc863e58-9ce9-444e-8535-cbe3002f810b.json and https://artists.proofprofile.net/proofs/artist/fc863e58-9ce9-444e-8535-cbe3002f810b.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 0x60724c01631b944b1e00bb9d7a5e45adf74003cfe2427db196b1be7e3810c417. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBAYE9100525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fb1c6afc1ab7d74d37fc87c1f2c3ffea7a85b76bdc437062529e1291064067. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAYE9100073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1b4070db4a368254dd68121ef1ca171dd6a51a64bd3892244cf3e4948097b3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAYE9100528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa32243cc7bf3caf8a5b9a44414b5aede5d06aad1ff9f207a43374ef2fe6fa5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAYE9100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa156bb5fd8ed120b5f0a383935406df93869da3c8bb4ad9f297609cf3256e021. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBAYE9100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60ae72f71f543951dd365fc84c3e54678ddfd5ffdbe30c4179cef132e502aab. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAYE9100050.
Unbelievable (Hot Bullet, Evoxx, Joy Corporation Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf389154518cafd73b91ee84bce652c0a5fc8fd66c2a5fbd2cebb70b4b18ab545. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBAYE8300271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b244832a382ea390ca3bb42b1bff79283875dcbb1879cdde22c64b61c88b62. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USCA29200211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ed75ba164849209c35817314b30ff86a2ea2aa7f2f851db261db2038ea0140. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USIR39000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd870c327a23333238c0f2e224fc01a273d14011446389ca2255a4d4a3a340d00. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAAA0300609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce89375a11aebbeb0dd2728f37b72289c63151d3da5ca214b16db5fca500eb45. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USVI28800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df7e4de4b40505a2fe0de21b71e9f3ce0e82ae68d36094e234953b8772e1474. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYE9000326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe780ea8b684e8457e37f3e6181e91f0df89a45415f5a5f583a88692b6bcf6930. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GB45A1901553.
Unbelievable (Bootlegged and Uncommissioned Dance) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fb6ae33b71232adadfc683e3fc1a13ed84dd32427900daf3db88b8e0a1ded4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAYE9000091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe664c00d77e84269c25cbf8e81edaf2180db3b344a7c0d011d74331d11997d5c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAYE9500080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5622b424a9fc4815fa03a1c567468b24c4e8533e21097570cdb1acb6f4a762d7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBCEE0100127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae3531a18cfc1e3eb2f7f9f6300fc6e159beac43f8a8ef442cf24427209cb0e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GB01A0500080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77780f6994b1cae7d88c32f50b1fd3eef0ce7c038345a37075c6b6812713891. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USCA27900065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f1f24003c280169eae1cda8237935df2fb53f535b61a71b30c749bcb4373d3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USCA28500252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1b226988aca3703a6e6e6cf5d24e70acbd30d403bebb6d061459e22737f43c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBBBN7200001.
Tie A Yellow Ribbon Round The Ole Oak Tree
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f4cbe51a9b6476003403df64f248e7e69c0fd72c1cae359656451252570e3a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USAR19800305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8333d763953bbd8afc9cbda110d470d35348ae295233af1177987d06cf6388ad. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAAA9200136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf359d897e6b56d4515e1b98e5672e39bcfc83ebe01c25377969bf1aedd324ed5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM72212750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65d81a2fe7840900a1e84991acb7d1a362a492c362819cd697d1daa7e10d872. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBAAA8500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2c37fa7d0f78650fb14def67311c0c2e88b6c0475b776e46cc8b5d1b909a84. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM70503151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ec8a08bf1d5f7c36cb97479a6c8d6a2d34b1e2c3d3a8511c86d6e5a26010a9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYE1100631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95cdccb52957b8f50f59b51f28fba047f493ccdfc0196798e33d4ad589435f47. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBBBM9802021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbe6826d0e4f378d9687cf90b14976fed13e9b385cb1be3dfb287cb1570657d. 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/GBBBN8902045.