"Dead Man's Chest" (also known as "Fifteen Men on the Dead Man's Chest" or "Yo, Ho, Ho (And a Bottle of Rum)") is a fictionalFictional sea-song - in this sense means a sea-song that first appeared in
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 0xffa429377a713637313d121e03f5cae40d85f867a09158035a1850ad17b948c8. 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/2bc58098-1081-4137-b695-2d74ad6a2ef0.json and https://artists.proofprofile.net/proofs/artist/2bc58098-1081-4137-b695-2d74ad6a2ef0.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 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 0x188b9799927b19dfda1ba04b2645a3b154209b03c86cb56ee71e490163edaef1. 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/USQY51751027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9da58b98565ce39682445817b9662bb2561ca3d0791720ba3de71534f77a558. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1829138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb33bd0efc993e2a3f5271becf52f3f8de1ddbde9bf42712a8c224f50ff96c2. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQLP1800617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81d30f653ab35dd32b80a455f7c74da8ea26422714f33598d2b820180644b7c. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:39:06Z), 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/GBQLP1800618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4dd587acf92eb5453abfa41f924440483bdf97dba71febfa98b3fecb8c5263. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/GBLV61916440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91591aff0e4e966f222ea7a41d7a49eb3969a1f86cb87ca31ad0bde414defda. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/GBLV61919374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e84e080a2197c8b8c625d5cd313a214a93e58dd6d1dfb03b297e004afc32d8. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/GBKQU2138121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653d41b3a01f1cee2ba667f16368b1a5c2a51f6c7cb0cc14c056762caa750e75. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FISB72400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5628cd82aa1b0f5575a1e8fc18f441fb6a042a5eb97456d14a896a37287fa0b5. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/UKN6K2402219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3de8bcf26c10e1f2ebc1feac9c6d08fa8948b2760b17d6bea2d077569ba9538. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/UKN6K2402220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd77b519bbf7b77af1d945f32a59b3328ffc1829e6f83532fc6e88ea523f494. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/UKN6K2402221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad005defc2c3458105c824bc3a79f1e5c9363fb8421ccd68ff0c3563650bc26. 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/GBKQU2517249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf567a0f2e75dded16eebe4bc8fa7ebe9b3501e76381dfb809781951b04c911e6. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/GBKQU2542928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a511f962a17d983bb51f4d3bb05bf4a5f7549a042d4c21d11add2017d45273. 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/UK94R1400051.