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 0xa515dcb59e84a1d702765cc27ee1727f58627baf10ae648400578b92355fe516. 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/6424a54a-6cc3-45e4-88cd-238c6c7a5d08.json and https://artists.proofprofile.net/proofs/artist/6424a54a-6cc3-45e4-88cd-238c6c7a5d08.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
P.U.M.A (P**** Under Money Always), Pt. 1
Still Holding (Remix) [feat. Esg & Cigarello]
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 0x07aeaba1f8b9960baec4b44012384caf812307d23f4bc4b8b44b8e9fbe6d0206. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJE2573032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6d59018b667dd0ef06e2db511acc038c0ffae20276bc2003249558c1fb9048. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/TCAJE2573045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6dda6feb7bd0071a7daef38d34e8eb8bddac53327dd5f280994e01a5be064e. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJE2573053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe734a489f36e8d0fb88d6eed030a15e3c7c5fb7293070aaf2f1926f18bcdf2c1. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/TCAJE2573063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed559cd7963929531d0f08350b9224f09a9f029463619fa4bf01bd43b7270f99. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJE2573070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3585688109bf802ed154d82777c49ab9019102ec2cc6ece5ae1b02c11cdf15. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJE2573073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcadee6e38617747c9d97f94397ed08037e4ba0a4d37c910ac2334171709dac7d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJE2573082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ac9de36bae246a85b5cba78d0b52213c6818ca14ec4345d5f5748cb6aa9b34. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/TCAJE2573090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6cd7819712fea1ffb665432a397acba3feb7b62ed62a19a0d0ce5b3119296f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAJE2573102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6133051563ecf25f9b257eff825cea35b66c8f67b6344206bc37c9baa661522b. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/TCAJE2573110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94fe4031267d85ba5465f36badaadb2e0b41eb04cc8e2e51d0fffebc916f24d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJE2573122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cea06fe9d234e2de8266256c751d035af02a3bb6e52ac48ed1f4668618f8a26. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCAJE2573135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa036e010deac94f662ba2b178e81fb5f2a087ae884366edd07c1d2975486637d. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/TCAJE2573140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3661097d646b64bb227eb61999e553422a90c7a2cc91fc4746620a551b06dbf7. 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/TCABU1464849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317047d614b767920d14de7e6994d09165dece20f0d9666bcfe52a390c79e147. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QMRSZ2001233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb097b880895e0ffbaab05ca6aa7177c127d4ba059ed5a75c1943b5fe60ce374. 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/TCABO1328563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36219fbc89fa853e8d238ce9d4b0a0754812d85162ed2212dcee9f31a91dc433. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TWHO12000010.