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 0xbccae55d369fd217296405933f76ad9c1d17f326b1c455d3c2030dd0d3054d25. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/689ebada-5460-44cc-9e9c-7d994c72591b.json and https://artists.proofprofile.net/proofs/artist/689ebada-5460-44cc-9e9c-7d994c72591b.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 0x0ca767cf58e08c271a40a40e043de8f2ebc64d330aa54165d058c5fbf209a11c. 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/QMEZE1708129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875a4e2794751f846ec5f9f684668e696a23297e2ce4d5640cdf66fe9a51951a. 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/QMEZE1708135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81271f4457072e7d9f0c616d8fbdb793f267f1be1fde6615c2e927c381f63ca1. 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/QMEZE1708138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ebe6bd88c190dcd24a2268e6c9a978d9f73038ce44db4fa8e1cc5807a34b5a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QMEZE1708127.
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 0x080bb50038599a61db1fedf800bc78bf65d993e4f2d137fde467257662bd1705. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QMEZE1708126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef231d39b6b746c50c1b979ba6526eaf6c7f65685bf98caea8a69bfd48d8a3e3. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/QMEZE1708133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05973138c4f635c177ec071725fc9aae2c427fb40b1f5e33e5cf143a169c4c52. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QMEZE1708137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852f02c81a684aec2dc40628c29bd2d8c3e8673d30578ef343dd6ba1ebefc35f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEQ121746841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4412a1f945cf765e4b8c183ed882c8ab5eb25afb4afbc46ca02a6d24871d959a. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:10:40Z), 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/QZAPG1816585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c285207849a9b8f6013165828a43e3d88c5e78e58c51bc62f136594fbe2900. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZAPG1853699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939b4e2d5080815bbb6539b27a77859125c08e8be353a15af45d0b9907fedd3f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM4DW1815381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d47e6c71618b0574bf530be5c1cf4e336b8c8bc38e7090ab09664892aaaada8. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QM4DW1815387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2ba3cd4369b3cc6d519429de54c7682ee3b853a9e59b18aca82c7b4af5c17a. 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/QZES71942783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9f1f423d480c5614aac90b009a7be5ec5f6004b3fb3b1b4d290c30756ddce1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBKPL1965334.
The Captain's Keys (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
EXPEDITion 100 - Vol. 13: Lights In The Sky
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00bfcaab056a803a3bbf52443447e0c7aed670368d4be97c234786869098da6c. 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/ESA011691577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba53fbdfe353da25931824458bed9793de39778a4aee8f668eca6cae96622382. 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/TCACZ1766914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e99954320960d94e48167da3ce8fafffed2c6b4059d080861c9be0e15403e0. 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/DEQ121751594.