Vessel(s) or the Vessel may refer to: Biology Blood vessel, a part of the circulatory system and function to transport blood throughout the body Lymphatic vessel, a thin walled, valved structure that
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 0xb37b7496f9f53b5961636c4b924d18ee66de06e73a8fc738828efd9ffaf948cb. 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/8da042f8-d968-441e-a017-d502caa24032.json and https://artists.proofprofile.net/proofs/artist/8da042f8-d968-441e-a017-d502caa24032.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 0x38e550888266c67f40d7231399869485886ddc8a0075bfa18f3d258b3c09c3a6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCW31200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d53056aa31afbfa49a6fb1934fa76caab8ec55e70486f3db9f2005c8839e8d. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/GBCW31200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd375a66685080b081875819801b24edf486c34c6281ea84caa21a4d230d3b07. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/GBCW31200087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030473f26b73979854a42f35d61c43742d215026003516b115785a106e0e93e6. 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/GBCW31400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f04dabd1b77abeae544ab27e49110200fe45a3f51c7d77a8d0110909c3d343c. 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/GBCW31800290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3dffe096cd06f7774cc20210df92c839caeff596d17ad403d8133cf9134f52. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCW31800291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59e407caba64f7f52b2c9b6e3260fbdca86ebce3b93de84f502645a2e530ab1. 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/GBCW31800293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf972ef1f2e4ac3e0d5728c29035b50b585e068e0a388419f2669a44f3d1972. 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/GBCW31800294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ebae9d05e97aec8b1c20d49f6152cace1651d1c7840f046e23d035be9ac219. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBCW31800296.
It Can't Be Helped (There Is Nothing In The Sky)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae95682c26eb502211dfecfa0afc576e9bd322bad7b04eac6975b4809e0b4cae. 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/ISW212101307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae95682c26eb502211dfecfa0afc576e9bd322bad7b04eac6975b4809e0b4cae. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/ISW212101307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9f9c48d3ca639b1eae894f20e54be668c1fcca355a323ed8dc54d93f798f50. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/GBAHT2000473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04d7a1ff982d5f65c81d3052ab179b1dcf46b3d82942916a7a1210e251fccc9. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/GBGLW2301116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1c34b8a5fed6792a8a9d9bf3ee92dbcc4b231d91084694c5c4fa58953e49ac. 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/USC4R1602065.