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 0x7bbeb10d9528c24c91ac652fc31c502e8fa39dc5f1b8454af1acb8e34e9de864. 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/85267472-a765-4090-b0fb-3585863420c5.json and https://artists.proofprofile.net/proofs/artist/85267472-a765-4090-b0fb-3585863420c5.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 0xf9870ea44dea6a4f6ba037912269e3c85af7c3a84bd30493030e4d7524af524e. 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/QZK6J2418214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43826886c57bdf768de2803bcf276359491ff46c1b50db28b467fa348115f752. 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/QZDA52379743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35ff951050e9ffdc0ff45dcb4bc280881e699b2b74a9449a05eb5dc9135c2cb. 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/QZHN72359164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ec9d2505ed54d136f87fc6a7eda3ef5b8e998fa4cdffcc37e3a78b655ba810. 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/QZHN62303496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733c4e204d76051cafdc1ecf14efb833026341f004cfdc3e39481506cda40ab5. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZHN72359166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52f1f98d77c5b3c9e8a9f98f62924c4fe6d220898df866c43e7bee931b1ec40. 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/QZHNA2534078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87ef105ec7bad9cc750c74363365ce673ea55f83b4831ef39c6ab5d153806b9. 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/QZHNA2534079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c1f9a64c0c6bc5ce72dbff88f8588a76b4761d377313b5d6eec4b751165603. 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/QZHNA2534080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25357982bf7ad601e89a9d6aaa8c9568f71babf7ff360796a6872ca82203eef. 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/QZHNA2534081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d93167ee34c76354fe56f480d2a3ae20e732cad2abd6926277b5dfe38d28a7. 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/QZHNA2534082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f45133aeafa6fd9969aef00ac78120a8a6399d9047e81a5ebe5c53eef30240a. 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/QZHNA2534083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdade313ce045190788433fd9fc5b310076c3da19548e44d7a4fc157614f34fc7. 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/QZHNA2534084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e03d4dc77649a9b396bcfe023f50dc0cd3772eb8c22d26895a30e3f5780ff4. 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/QZHNC1985552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be89bc9becabe7400b902b1e835724a7ba44f36f65ea13dc00002c27eac5122. 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/QZHNC1985550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf216d272c98b7dcdc916b5c30c0d70d04b99caf07051352af2ac302a4983a6e3. 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/QZFZ32074017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b92e783100d713f39563afe19c566ad5bdd01152ffeba3746b8d0db1fcfe74. 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/QZHNC1985551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d90738d3f312bb293bc9460a81531a67ce005b67c5ac7c5f8ed7d7bee2546a. 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/QZFZ72065064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc323b7e43593b37b67024d29a594709f5ab7dd4071b577694709302d8e3cd1. 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/QZFYZ2054021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7614b5e93e4fe4b973bdd0a3a488f176dcb9a80b49b8cb02ff5cceb22dea96e8. 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/QZFZ72065065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47875dd4e3891fb918634dd34957aa7fb3518dc45ff977f34d4645e2ab3c7615. 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/QZDA52578523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c59940f410e58758d90aec817c4a0ef8979abb998e36fc5341c4b1d0216b8ef. 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/QZTAT2480278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdaefb19dea0d8bda5842c43b9b01f55a1295a82c261f41ea230780fcc37dc79. 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/QZTBB2495802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fb2a9f82b841030bc9a8e9da219e70be4f846a7b7b90313d32c5d136c4ca24. 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/QZTBF2415506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47875dd4e3891fb918634dd34957aa7fb3518dc45ff977f34d4645e2ab3c7615. 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/QZDA52578523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fb2a9f82b841030bc9a8e9da219e70be4f846a7b7b90313d32c5d136c4ca24. 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/QZTBF2415506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdaefb19dea0d8bda5842c43b9b01f55a1295a82c261f41ea230780fcc37dc79. 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/QZTBB2495802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c59940f410e58758d90aec817c4a0ef8979abb998e36fc5341c4b1d0216b8ef. 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/QZTAT2480278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40578d84727ec90d49fc3481a52a449f66b15e941b47cb54e3d549a14b28ec7. 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/QZPLS2449890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8255f4732d17d2015382cdb0ba6f9caab2f787b9fc85fa4299b43b2f99259d. 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/QZWFJ2324831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8d9d19531712d8b6789bfe33fba3b5f1f66e31129a0cc6909502793b94b4e6. 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/QZK6M2330121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77425ba0e5e104d91af114ecce1b991f7eab8f31a6031e95362feef560044bde. 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/QZES82381412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43826886c57bdf768de2803bcf276359491ff46c1b50db28b467fa348115f752. 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/QZDA52379743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55c556224079ddbd3ebee018f0f805d09a1d315b9860f8e2af5a33113e926e7. 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/QZDA52350167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea084c281e030ae3039aa1dea381811dd94f74e274e834ab8060f8dae0327425. 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/QZFZ62302599.
I Sold My Soul To the Devil For a Glock With a Switch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3ab86d9a3f4c8f152003761e6bdeb132753431ef439269467c42eb4116a257. 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/QZDA42267103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6241123e691e7319251d078c8d6a6b7320c1db8700ea60963fc6482616f6ab2. 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/QZTAS2115499.
Regurgitating The Same Music Until I Get Famous
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc991c3bc34e5d958bd527c4a47b23c4e96dda4612d553ddf324f1ba071c095a2. 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/SE6HN2370204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9870ea44dea6a4f6ba037912269e3c85af7c3a84bd30493030e4d7524af524e. 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/QZK6J2418214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6248f0cb44fd8f9ee49668258085f5dedc55c783e843d5f67f2de5d1864d67. 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/RUA1D2421021.