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 0xb497a4ad2ce06233d8031029310eed10b592ca3d894ed621c122a9f20cb48439. 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/e03757ed-7a78-4390-b039-a92262c1cf12.json and https://artists.proofprofile.net/proofs/artist/e03757ed-7a78-4390-b039-a92262c1cf12.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Drive (Who's Gonna Drive You Home Tonight Remix)
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 0xdfc0d5bb58f82471ed3768a34e4779914d9065e9b77b0a0e3d71093433c99250. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22344642 — a six-check JSON result.
You and Me Belong Together (Belong Together)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be57551becee9baac712a04c39272a0148cd18effaeef326ff644366fadc651. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22455053 — a six-check JSON result.
Money Money Green Green Moneys All I Need
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7d0c0841e6be8f0494869341bc9e503a108879bbd15234021464119e209d1d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22461041 — a six-check JSON result.
So Pack up Your Car Put a Hand on Your Heart
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726ebdab79bbcbf8127fd3ce73ffcaebc31aeb832cfd78d0a4fdabe34073fd28. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22462087 — a six-check JSON result.
If You Could Return, Don't Let It Burn (Linger)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1034b2f2c0d037da502ba583be004fc4e614a59a95392e8ce2152b737efe4639. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22465867 — a six-check JSON result.
A Little Bit of Oxygen Is All We Need (No One Else)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7121e8a39769a8e78dbb1db4e52c1dd1608e2969fbd91b80b2b7fc23d3a9227. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22469177 — a six-check JSON result.
I Been with Triplets, I Been with Twins (No Chill)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726cb73e14266f065f1309aa3fa35cbc31d84942a6ce0297164d07f14e0c7e19. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22470192 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979636ee4427ba59b949ab9c666f909e5507c3636c86780b67d05a0d4ca3f9ee. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22483526 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b114402c67971be25a4d4b5937170f23ee272b8ca2f740b079b627470f62d0. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUQ0L2410043 — a six-check JSON result.
A Little Bit Of Oxygen Is All We Need (No One Else)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212082fc12682a32bbcf25936145cadf8953042cff2e6cb913377d3ff25e4bfb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUQ0L2410044 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c8fd1b4d92b86090c0041d23077258f2a46fd98d99ef3dd7429407df5a1365. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUQ0L2410045 — a six-check JSON result.
So Pack Up Your Car Put A Hand On Your Heart
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fbd005eb52ddce0cd51bb16f5182feed5d93fba3eba85aacf1f5880ab3246c1. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUQ0L2410046 — a six-check JSON result.
I Been With Triplets, I Been With Twins (No Chill)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda64689e4d5205b6cc942fc47a08f9f9e03f2c13e9d34dfb584d280e68b10175. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUQ0L2410047 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f21d4c620a7dbb9231855cb6db3d1b62e3bfd5ffcacafa047ca2cd07d19d35f. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUQ0L2410048 — a six-check JSON result.
I'm Too Messy and Then I'm Too Fucking Clean