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 0xbfc7628f9854b46d2831bd3aecc566e448431ea7143b1c4db3edd76744f2276f. 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/1fdf0a4c-8e17-40c1-bc4e-5450d8b3cd44.json and https://artists.proofprofile.net/proofs/artist/1fdf0a4c-8e17-40c1-bc4e-5450d8b3cd44.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 0xbc9bd9cfcff1f0951957566711a970308e37a6289965ae9ac567978370862551. 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/DGA0L2380458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0d93038db9f161696928cfb86307de2353c21d60f5fc33115d85f82507fd20. 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/GX89G2316920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa965e3ff7783bc899ddff9afbac9f07d57d48774f739e0196c075cbfaebda6e5. 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/GBLV62215853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478aecd87be287e35e84e2a806412333483094469f0592b17934c73abb42f6ce. 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/DGA0Q2376188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5fcc6f789b274ace7822f45450683df6c557271c63beaa9cbdde78dfd8c530. 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/DGA0P2328218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b85ddc3904b59a1ce2cbe738c285078cf8c2ab66e08aa511d322ac88cf074d9. 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/DGA0M2365510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da37f60824c0683e9cd9c1b3a97eeaec9a14bb3d309d680b75892fa7eb14191. 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/DGA052392399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01200904b4b464acba6a5001dacaff3ac0c832a809ad98ee6383189219a870ca. 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/GX8LD2378873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5967c2015e60896b2bcc08a564be4b704c8941b19ac2a2f5d3bcc47f78cd289c. 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/GX8LD2315159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595c4d71ae5c25f869064f781ddedf9106a940cda499e509f47a776a2af5120b. 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/GX8KD2315510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1fafb5e514bb546be4637ddbc82bd0e742c47c95040801203cac8bac80efe5. 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/QMFME2211516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec4de0ad40e1d8f7bbf483435d9a49efa098201730b379d001b68d0f04f56de. 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/QMBZ92299074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515b6946527644c06a266cd04855e12cfab5fd7e2a9a3f1b1040d4497d1c6769. 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/QMDA62253982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7655cdea66e13b1339f6be0a8d0f8003c3b671f527819c56ee81937ce65ec216. 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/QMDA62202322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26bcc9247211713b27a39879f7b070dad280f3f4654cd0629229b3359916f71. 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/NLT2H2200589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc5d30b506ad824f641733ad625323dec5999f01473fa8f285b536777361b3c. 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/QM6MZ2205200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6aed7dbb3b6e34eb2e5f8c668c8e4b69cefee0211aaf8e6bf1f7b6d01a9a8d7. 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/QMBZ92134130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1963acf18c61bef820e626236886d84ba508929c80f778dc2037ca1ddccc4a. 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/QM7282002420.
Eurodancer (Alex D'Rosso & Refeci Remake)
Eurodancer - Alex D'Rosso & Refeci Remake
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72cb5f00c6f491b0aeae88462137c2ecfb82849f47587d37d3a284c758f48d1f. 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/QM7282024385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3025714e40b7f62000562968e068f2c2d3b681c2941b61b069894bd23d00379d. 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/QM6P42033647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6d818e5e09a5f926cc88f736350b793793ef675f0efa337da94c6705f3aacd. 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/QM6N22010548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab414a42e59e371d58ac4d81f3f22be6117cf61e71b3f8d4b983eba3083c6ff. 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/QM4TX2010573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e9cdc7f78907bcfb85370f11df4ffea9be7b2c0efe29be04ca57027aa23414. 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/QM4TW2018878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0397f96aaa8d59aa6dc33ef53d567263f83ee02d64f1d0fae45fe08f69e61609. 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/QMFME1943808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071ada3505e48e61783cdc2ec5bb92bd9c50e721fc7f7c3309c76f3eab3c70c6. 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/QMBZ91914724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f9d2f906d2b50cb61a38a3791837d532dc958b64d71c34aa9d562ca31ca61b. 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/QM7281962076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4963eefb061323f3aa15e5eb35195a381e340b634f7d4fa48631f06298625c48. 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/GBSMU6298642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32154b08919334ac23724b2f280d9526d723a949400fdc5208baad8148d5e71e. 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/GX8LE2367921.