Cashmere often refers to: Cashmere wool from the Cashmere goat Cashmere goat Cashmere may also refer to: Geography Old alternative spelling of Kashmir, a northern region of the Indian subcontine
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 0x686a25490cc29ce6b7dcb3e5a6ff700d701fce71df201002e74412ed3c7ebd0d. 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/3d5fcd1d-24f6-4def-bc97-a92c4d57621a.json and https://artists.proofprofile.net/proofs/artist/3d5fcd1d-24f6-4def-bc97-a92c4d57621a.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 0x96ba2365992b06648a9524cb2633cdb87d54172c7af142c32e603a67df0916cc. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QZHN72186628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8c111269b1619ce14910776f3dd99b835b78e05a3044c6a0445901a65bff2e. 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/QZHN92138962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd0373dd7fd05682eb0bffca57582749c1d138bfd0af4184c09e80231d6255c. 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/QZHN92138963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0117884491ca5ebe526f731f2b14376b455a1497e2ba6045d523b26d09d1345. 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/QZHN92138964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54d579dd725a565ca51fd42d50f3099a234bfb062c258f83ab7bad22477dd05. 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/QZHN92138965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a1895932608548d15ca505d67a47da797929ce34614c0eb011e8bdf8459ea9. 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/QZHN92138966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7076f77dd0161b7405582190d93b5c9507c582e7d3c8183b9e878ac7d882f470. 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/QZHN92138967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd78c306a2386202c0c78c420e6a6899167c4296e16ca1eb6b83e2b9dfd46b30. 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/QZHN92138968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f99e7d010254428059779f7be4d446928d62ce0fe118703da5aa220fddd1c9. 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/QZHN92138969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270e2df78eca63aa031ee49ed4f353f2616f507bfd8426d027afca05f53ea18f. 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/QZK6L2120626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16aa93cf3cc2ab5bfb25db7fd145bd5f3c2ef6ba279055bd24fe042ac48740d9. 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/QZK6L2120627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e386e89bca33c0b26541ef7c4d6714dad246bfff8b917982876291b65dba262. 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/QZK6L2120628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e39e94d158c203c726d45af4ea51d4e318d55b6cfb270a9d945a8e167c1913e. 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/QZK6L2120629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ba157e8dd363186bcc6ae11a5a1ffe82f6e7d0fbc5d659632254c20ab1ab6f. 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/QZK6L2120630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7fab872da30d195c5f3a246c9eb81b944a5763f11826523b9cb68499b4d7ef8. 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/QZK6L2120631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70b747d461c450a1bc49456d6b5548c7a33e8efd2a25c647dc2183f7d63a205. 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/QZK6L2120632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac189d4417651c7854e7e0ee92ee5551a8181156a3203210f9e242bc54ae44b. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZNWV2121691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1191aa19e31099d2d6d99391741b6036eca13ca3cfe977ce83f1af3feb5fda8. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZNWV2121693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675fbc339eadbc1a12fdcfc1f14f2a4b7689cdaaaae3709b184d5b21cca47aaf. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QZNWV2121695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d3b67fd3ddf9c41ea509aa89ae9871bebec130d8f862d250607345149da070. 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/QZNWV2121697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580f3454fb75daccf823f2c6a7f92381278dad442307d603d6b81d3370852e7f. 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/QZNWV2121699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bd412f454a338313bfdda379affb3c4cb0d645d424a08c964045b0ed416f54. 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/QZNWV2121702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71de5cf4874675c6150fc2b5f5537615a31e534f0d2d499a7dee66ced2cf589d. 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/QZNWV2121703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41f645075ae0e2cbf2e5b4bfe1c59c190a41888dbc50bf11d4fc572921c083b. 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/QZDA82280897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882d52e54a96faf0f55285c63fda7fedd5224ba5fc9d53848d6b1e5a31f7e040. 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/QZHN42402485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd986f7a5ddaafe97272608cc5889b1608d504f184c244cec7f53f750e015c044. 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/QZK6L2125786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941835137ae9f2aceef0c3da569dc897e93e4085f24b50bff57ca09171ec8570. 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/QZK6L2125789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4166b028a75b538d8a942f97aeb6c20fba916d4e3f873c9c959c78876d908fd1. 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/QZHN92141011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6016da38a4bc5f87dafc1d1f977ee7ee13951b08c7946edbcae2aeacb793a0f. 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/QZHN92141013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5034c53a4d93ddbebcb0ff659e0a7f5225b3260ce29f6a9549811623a6b1f20a. 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/QZHN92141014.