Sheath (pronounced ) may refer to: Biology Carotid sheath, a condensation of the deep cervical fascia enveloping multiple vital neurovascular structures of the neck Leaf sheath, a structure, typica
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 0x575d64c686f3c61ab520a3f85ce9c5eb0fdeda28c3902ed969e67deada06c52d. 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/f0a08dec-75fb-4fb1-a9c3-17bbb78e94bd.json and https://artists.proofprofile.net/proofs/artist/f0a08dec-75fb-4fb1-a9c3-17bbb78e94bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
有緣作伙(feat. EyeballRay, Macdella, SheATH, DREW & Yappy)
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 0xe07dd8e7663226fd9c6590c010426dde01610dfbe46dc5245ccaed05ef48459c. 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/DGA062477687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a742164cb320d553b8e2cf3e93db4a133af74a11fb53e6b57685e080550ce4. 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/FRX872366037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0429ba09a3f4965e3e4108eccf1991a5503f0063df5ffe01e14701d05e9615. 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/FRX282385618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0881386a9254318c3a5f18728504530131d8c4537c07d6dace877ffef8715463. 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/FR59R2215931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9e868ef3eca70af102a10822e66a534c360b4f433b3d295a4ab67e2f543876. 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/FR59R2215932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a9e3e13e422d47579d5126deb8af7f362c96acbfea1669d9c2a872e4a4cea0. 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/FR59R2215933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6258cc2781df586fb18a368fe3a869c6935985c3b232839e61c56d56bec70ae6. 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/FR59R2215934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d5b7115fb8ad3deb20080cdc6d4ea8189d23023f2e36cd342fe42cef47a586. 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/FR59R2215936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e4db90e643e54df3b931c6b46fde8286dcd61fdd52ee4c3fe71a0352ac4835. 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/FRX202124536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf810eb05e535616198e66af2616ffd03d72c1b5bde7f29991252e1f00fcd767e. 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/TWDJ52200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40f02eaea446e2e1829ee438e42e5f497c6bf8813c6579694298a55f8f27c15. 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/TWP012120411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84957b8181f1ddf05d67fd34a62b62fdb6b1d4cddf909eb0ad6670cdbcb66dc. 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/FRX452330917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5238490a1c6565c9ec1e78f0450ad40202f8e78a3ac24cb91ded8e8b63722843. 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/QZTAU2285038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7c855db2f9276b89f91683823438186496ed651eae9bfbcd918cd2244e6d33. 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/TWA532101533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccc2ac7cc65fe73729a17dbdd82da98432ddb49caabb66e74e733ed92f489a4. 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/TWA532101303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8fec8d31561d721f6955042e95a5dff1c808b4a4cebeb0adde88b4562ff24b. 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/TWCT52438756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce08108ab1e44dfb9203090a7e2c019ead789d067a98dad0b2dbc557a279c7b. 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/DGA0L2490955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0f61b79ebc43d1975df6a13f81676f3c8f17455a8a553c823bc388b02c3067. 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/DGA0L2490956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7425c2aeb4e4401eff617033ff7f83f5d60ba751d1d42883763739278814688. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DGA0L2490957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2d008d8a055f8d2f664c57295b9329cef4decab71c909d9d299a711a8651df. 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/DGA0L2490959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6188f086e1a7bd452137fa103abc6f4f185ade301f8311e9069afdf76bebbe21. 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/DGA0L2490960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaeb64a038ab9d11df55e094610c819d3c6f08d44f95e66e8cd98a0f5af4aefb. 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/DGA0L2490961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfca1d27633f47eeae31e8bebba92f1e6955044f0f139e61c050a3f096aedfa0. 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/DGA0L2490962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847c0b31efa3e76dd382d872add834580d6f93f06fc3269f9d8ddc104e347381. 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/TWU712500584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1a15e5f9b6f8cb8ecdb85b69c5ba4b6e3aa1e47aa6b25ad2f5845444c2ce02. 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/TWU712500585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1418a96c9806d53e855e2022f1ba083011082d6fe138e8114fe6a9147b0b72f. 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/TWU712500586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91daa96474f5579422e926b9557a63fdc7495e760860156de015690095968bef. 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/TWU712500587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c1b9d0eccf1eef16afdec429c73ee64a3fac7e27ee8c89a9543a179e7790c1. 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/TWU712500588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c557e2b2d5ddfbcfae487189197bcea5480d43ef9a0972994b671ce0baf86d. 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/TWU712500589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5424ff9b6a942b18c159499e20903f4cd4731785bc44bd387d882c900f683a2d. 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/TWU712500590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299e12179cd3c098a77cbe5aec841065fef9478ed61563a2d114b4ef69ee5ca1. 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/TWU712500591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8a0bca518a0cb922695f1f033302846b13a67aa99d0c420b9ccfcf174db9a0. 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/TWU712500592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d705371e6d48e89f1d626a32ce82de449006d0e8a81bd84aac9acb2df37996. 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/DGA0S2473084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93660eafb41dc3a4c3e253681d504e1de7581b2eb0be9145a445cafb0ba8e9c3. 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/TWCC32305464.