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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725e683d8c03f8b7616e5a37829a5cd8d274e019ae2016ab4a1707aaeac63d65. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/768940a6-132b-4721-ba23-9c05548047fd.json and https://artists.proofprofile.net/proofs/artist/768940a6-132b-4721-ba23-9c05548047fd.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a9c0304ba0305f7a9290d712095b6b1ec4889f211eb144f8d42c647d473eb0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US3DF2482198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb7bd25d800f0dbf12afc4886912d98b4cb659c8f0c32f0f34610c026678c5f. 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/US3DF2482200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7384235731b8da3c5fbacf0d329403768f2229d8b4171aeb2bbbc09a9607146. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US3DF2482201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8632638a18dcc271006d8c136bf767a698b23d9ffd66e353ae164c8070a6874f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US3DF2482203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32147e1fa0b93e05040aad8feaaa09b29d62fad4e1c17340de9a56c01add4088. 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/US3DF2428519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c4162ce8c4c3d430b2086983ed37944469fa9e01bbf33c6e77153df361a762. 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/QM3DF2280667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14dc949cbde1e29733180479b4ab34586010b8ca85947475270cd57a31a5890d. 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/QM3DF2202963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842a08e1fe93170d287b26f48e0a787fbfa3a5a312301d720ca55862b0e6fda7. 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/USANG2281787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77efae447a340bffc2650dbb43d4a9c5ac083b9468cd731eccaab0ca8a4b6698. 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/QZFYZ2350691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a06398ab0c515d98fa4974578ede5b3805d145c45c63034790e50ad6ce0e62. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM3DF2280064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e7d20be68b5682a4dbc3dad251e74dd034ba4a75d6f3b61791c3d36a4acdef. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM3DF2280066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16338684108809ff555dc67adcebc8d939d2f5a208d68d991de704cc4ea9e60. 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/QM3DF2280067.
so many years have passed. i'm still alone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa9ee4bdae504dd2ef8a438c3d5bf1f602b36c3a05d11397567e89c60521ff5. 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/QM3DF2280069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c31daec1511da662d6285e02bf523f0b2cda01e07e31cc9dce4a6b8ffe0af4a. 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/QM3DF2280072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c440bfab227a4dceb1f7cb1f727db8356f4d7f8f9e19e422f34afa159a77de8. 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/QM3DF2280074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b6cb5bef729e409290c6ae5d8bece96bdd548e12b968adc902c65bd06235f4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM3DF2280651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2524cbbe182698f7288a814b4e34e56300519b2c628d4f1850319ab1d8b4ca. 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/QM3DF2280653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3298bfaa3463804b047f09e39e91a241c285e17d5a3c1fff22b1c629b0fee672. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM3DF2280656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528879e0f29028841496a2f4b93a6534743e1345496dd16b174b111975e83244. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM3DF2280662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9411dbf4ca5bedc89f3b8d520d34377c41b51b74da0e921bf88d99627c99e80f. 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/QM3DF2280664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19218137ef509024e385b4abc818218dfa7d8199feae489b9f6aaecacc2c3b0. 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/QM3DF2280666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c4162ce8c4c3d430b2086983ed37944469fa9e01bbf33c6e77153df361a762. 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/QM3DF2280667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade8e1379721b9a82beb8d8b7a5b49136f332730be452518b363b31ffb2f69f2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM3DF2280669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bdb86a3ab69c228dd9ad65666346a6916ab2f5b75556038e2039a8f331d526. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM3DF2280671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d4f6ebf0b9e7289d04d2c3d128e9c13e3fea8ee03dfb897ae7b5ab044174ef. 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/QM3DF2280677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebcf27ef8128e4695282db04ac2e544eac2b9e90f39096efed1692daef981acb. 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/QM3DF2280680.