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 0x1b7ca5613329c5bb8ebac9128317b1ddf3682b43816ec4cfab0d8e405e73a343. 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/6312a262-6c83-407d-a2df-a35caa18cc10.json and https://artists.proofprofile.net/proofs/artist/6312a262-6c83-407d-a2df-a35caa18cc10.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Two Piña Coladas - Bossa Nova Tribute to Garth Brooks
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 0x903dc7402804328aca78514045361e8cae10ce30abe02004ff63e8643d31d0e8. 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/QMFMG1425071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcd22aeab09c8f83d8e2d106f181db43d6bb9af3c75b1335b6acf6e04bb8423. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMFMG1425072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40d1b6db3bf15fa42dc1882589c8ac4029d023a0edc80ddbe6b5e66e14732f2. 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/QMFMG1425073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36143803a1724fa49b429c52db3f0adcf5c4d50c26b9d4bf9c4add67bc329a0. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QMFMG1425074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a65b4bfd8885d26f93ca5dc0b6fd260bb95961ae206f79be653b0d5a51f3d13. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/QMFMG1425075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3070a71a9ce07c40a253a10fc3c78d6e680dae24ff474baad6242628685bba9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMFMG1425076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8534236d0cb764459f4b2c07a43b666571fd7828be9d30ffec56c50f96f740cc. 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/QMFMG1425077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd99b4e4c80486854391303d18fb09a8c8a462e28b4e50a86086458bfde08892. 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/QMFMG1425078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170a5aba2be9c73f8c613d0fd110f66fa9cbe4ddb3fd88ce14620034317a8f22. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QMFMG1425079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3a98528791f37af1338ce3dd00e0189ad9b85ab50c6cced5d868fe0cc034a4. 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/QMFMG1425080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a28123963fa1e5f3cb0a160337fbd879e1d2b75fc95b020aebc5dc437b667f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMFMG1425081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98bd8c381ee2d798f4d9ffe11a5517947370f3b044521f7a66d40222567201f6. 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/QMFMG1425082.
The Wine Lounge Selection, Vol. 2 (Cocktail and Chillout Fashion Bar Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5abb7569a255f8ce4ed2507bd94d20f0cb2d7bd2cd186d58484a552c46f5ec. 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/ITI021200449.
Grande Grande Grande (featuring Francesca Gramegna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa185849b1c6a071ece8452c4fbf24db6524d6d9b6aa745d25c0e0653a68cd2ff. 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/ITI021500114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5ac1e8661cf258a21a76db9f1db481f7f280e2f7f70e12ba6298b88d7d031f. 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/ITI022000405.
Italian Lounge, Vol. 2 (The Most Popular Italian Songs in a Chilly Sauce)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5abb7569a255f8ce4ed2507bd94d20f0cb2d7bd2cd186d58484a552c46f5ec. 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/ITI021200449.
50 Italian Standards (Le più belle canzoni italiane in versione chillout)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5abb7569a255f8ce4ed2507bd94d20f0cb2d7bd2cd186d58484a552c46f5ec. 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/ITI021200449.
Italian Lounge, Vol. 3 (The Most Popular Italian Songs in a Chilly Sauce)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4229858f8b66ce4c836a22faa780d0377e3f0b59c03202e1232f7c42f41e3b35. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/ITI021300710.
Il caffè italiano: Roma (Italian Lounge Espresso Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5abb7569a255f8ce4ed2507bd94d20f0cb2d7bd2cd186d58484a552c46f5ec. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITI021200449.
Il caffè italiano: Firenze (Italian Lounge Espresso Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa185849b1c6a071ece8452c4fbf24db6524d6d9b6aa745d25c0e0653a68cd2ff. 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/ITI021500114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4229858f8b66ce4c836a22faa780d0377e3f0b59c03202e1232f7c42f41e3b35. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/ITI021300710.
50 Italian Standards Volume Tre (Le più belle canzoni italiane in versione chillout)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5ac1e8661cf258a21a76db9f1db481f7f280e2f7f70e12ba6298b88d7d031f. 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/ITI022000405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa185849b1c6a071ece8452c4fbf24db6524d6d9b6aa745d25c0e0653a68cd2ff. 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/ITI021500114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050adb7007d10fe707ea03ad150b1c39a0c017fa133bc058ce9bf773be6c7c5f. 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/ITI021800727.
Grande Grande Grande - Funk Mediterraneo Touch Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9276b2f10b35adb3b06f52ba7fa9f2b8a1fc189296d1e7d6099003d05862e2c. 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/ITI021700529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a71af45229ad21a7387fa2a8b056240b2df63b2756c761d714d10cc8d0ceec. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ITI022000358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5abb7569a255f8ce4ed2507bd94d20f0cb2d7bd2cd186d58484a552c46f5ec. 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/ITI021200449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa185849b1c6a071ece8452c4fbf24db6524d6d9b6aa745d25c0e0653a68cd2ff. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITI021500114.