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 0xf138581b2d208fbf0fcb79bb79f50cd196f15eda5a17e2c91453779ebbf34314. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62c041b5-ad9c-4c66-8402-3ebbd85e0b79.json and https://artists.proofprofile.net/proofs/artist/62c041b5-ad9c-4c66-8402-3ebbd85e0b79.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 0x5a3ea8beac4bf731b840047c0e4ce24ea326f7657075e05cccbd1a040bc86c89. 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/DEWK51900221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233c370299161cfeda08bf571b2930b8ce5fec76cc52373976d8d3089b9b2557. 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/DEWK51900226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b77354ae417ce43f35adcc6e7859819347306b2e9a06e1a696fed16779355fe. 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/DEWK51900227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df6b7242b8d84a63f24f985b0b4ac7a0c12da4b1580b4c008cc1456d72c056d. 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/DEWK51900228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0630424acb76d368b9ced9f9fa7ba696dcc718ab3509f67119818e87a728ec. 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/DEWK51900230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7bf572f7f0ce1f02ae074387176a711a2b6639e2beb957359c170a6e167283. 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/DEWK51900231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09322e73d21d1cc0355c87cd3cbc6dc30e6a8face40adae4d74b621c3089988. 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/DEWK51900235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4386a1bef7a4a5e1176152b6b7dd33966e98eae9ea815c12713350ad7f503094. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/DEWK51900222.
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 0x916cf33649e0ae89a088f96c03dcf1716530768e44a5df74ce416a8967b82dc3. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/DEWK51900223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501c7c27d61511e8dd56c4cc9d9d219dc788e1a5e9c4b0bf1b99931aaf53d640. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEWK51900224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8203c0632fee820b20d7e4e9d43c16b86730fa33c22ed434352cccef7f82761d. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DEWK51900225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab7ecd2449eb4d03729cc4aad5a30f7e6488fdf71914a138b74ccfac31e9a61. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/DEWK51900229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb52770a2621ffbcca8afd086f2a9f5b2895dab75b7f180c6df87516030334d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEWK51900234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73cb4327eb906d855f8ba774e10896f27d2627b7c497f43e6980953a31fc29d0. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/DEWK51900232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d23d323922f9f44a84bdf03601cbde7fcf29c2a0f42d37b2336f804ee8184d. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DEWK51900233.
Gemini Project (Dark Slowburn Spectacle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e87335c7fbee3fa248cb4465fdbc545468ba838add1209a4dcd816f1a35360. 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/DEWK51900272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f3e0b5aa014d7732c103981ef4209647c30a7e9477ec48a506bc75b926b666. 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/DEWK51900269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b576ade552cd749f9677088edc18904fe9a9660d5fac85c0b31edd444bd2eeb. 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/DEWK51900287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fe70f7e52a7b376be5b9ed1d640baa4ef0fd68b4bfc11563487503a2777234. 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/DEWK51900290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f3fe46eb0019a851613f5e9c800e81920fecaef9cb10698ed4c6af77b88eb4. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/DEWK51900295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7664f92a0fc66afdc3112d09ac633bdb9d57130c7b162df84252902bc2e5b0bd. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEWK51900292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f6d7d7ce56d335308189f8f1ae5b6577d4a5d2703a6551f36a2900c1c62dbd. 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/DEWK51900281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf870372e00dcd905d38809a07c3cc52715efe1b6b4e07cbd5cebab298000b555. 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/DEWK51900284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad682fdd15ffcdb2905aca5a14ffeaa5e3e45d3746ac57591756e294c7a8c25. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:50:03Z), 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/DEWK51900304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d35a84c14db4c3f94e4952ec7da3648b5dfc8001dfa079b615356b1dfa511b2. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/DEWK51900275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b54fd364c7f16b41713efc97d99b7200586d43021ba4534f84a3f140b57827. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEWK51900298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216d7bb4adb195386e9963ca6e3ad7fef8f35f3637edb052ea4aa91329eeff2d. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/DEWK51900278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c52d372f922040c6edd7bfbc0e35239ef9baf78c1f27e04136d0789aca25858. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEWK51900301.