The Sheep is a character, created by Charles Lutwidge Dodgson, a.k.a. Lewis Carroll. It appeared in Dodgson's 1871 book, Through the Looking-Glass, the sequel to his 1865 book Alice's Adventures 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ce584a0c42b8e7c3decc8d2de5d3388c92e5fac66e111bb27a00eb8f15256d. 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/588daf4c-091d-4b3e-a1bc-96cc2d049a54.json and https://artists.proofprofile.net/proofs/artist/588daf4c-091d-4b3e-a1bc-96cc2d049a54.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 0x7a85b360bf37d8115ec1cbd8cbf2150730fe026527b36d2817ec1663f98794a9. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/QZWFF2349883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeca43c7b2ef58fffe5eb83cff96b597d57904f9a1a20fe4729f5bfdcd9b2570. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZWFF2349885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d21ade557fb44d1bd7b57d3234276e940d405bf359044d1066b093fa90e84d0. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZWFF2349887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb1b8322e27cd7dfa2cd1f0caa6e9230c1f48eb2938820ec742bf06cc21e07e. 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/QZWFF2351944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a4d3e64aebb2e562b9d0d53bf379ed6c4017affb2547293a214572cc47d191. 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/QZWFF2351947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d23a4fc7df5bf347d35faf36fbb032abaebdaeb3af8ff2543542277bb2229f3. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZWFF2351950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45c375f773a984fbf3c00f96b90c9128bef6f8d60fa2c062954c8c7c1fb7759. 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/QZWFF2351951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a450326e9f9458c0f2bc65861b94c381cdbc9d4c8d07e2ea1fb4932e16b4c1. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZWFF2351952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ac0f7415b68ca708306d3469714415932d72161549eb478d41bf7b4450f276. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZWFF2351926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e1225b6414804e723743e76dd0b4501372326424ee41e5141cf109320d318e. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZWFF2351927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425803be44015d727b02e5e861ff04f797b6bbb66b18ef42cb241e4b23e1b749. 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/QZWFF2351928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743dd22871e7aef06556c30e83484da3027dfba9292011883f18287320cbe1de. 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/QZWFF2351929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7dcc5b31e1f35192bd8074a7e9162818d861fe8a709f0279e2eb60037768a9. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZWFF2351930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c18746ad41fa8edd4a6349ffc36d2e707fdea920564f9577a9da95a1277e8f2. 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/QZWFF2351931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ae56da233bd2c60143e98a5748e5d90f4aee60dcc505edcb8a776ef8619708. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZWFF2337665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba428705b6f3cde34543bc05e2d3c91b48df185b9a20ef20069896453e1788ed. 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/QZWFF2337666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88c74c2f5e29b380a2a9ae626f3139ae37b868fd81c50422059c0ca9c3b348c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZWFF2337669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b370aaaf9b2914eec3f7f995fd6b062cec46cc65f7d9edf6c0f680ede2c4f16. 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/QZWFF2335826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67cc3538b8a8bbc04607399ef065fb96e4dd50f13f230850447e4fc96e9e4dbe. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZWFF2335827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf7ecb7ef3ae5af66fba396e87932d3e21c4d8650fa40aec9d9735935c3609d. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZWFF2337672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1007e13944e682dc35a335e003de60ace12c6880f75c47f1e97858d49ab4fdd1. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZWFF2337679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d78e90aff407667e0909ba6abbd0751d8c36f5a6787f3576f41259587c27887. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZZ7S2522662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039ec17e02ba9726c34bcd28a831fc003bfa140526f711e92212e073db4ba4eb. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZZ7S2522663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29dae122e95e18d8b3e750860cb10a9405acb4dfd1b95645ab0311222286005e. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/QZZ7S2522664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bcb6c61d696af14d99643f590c2fe7aaaa4abd76fbc57fcddcdde4aec64e723. 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/QZZ7S2522665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ada57a767bab1216f4fae834dc3720d91921d4035b81ffe6a1fbde3b33713b. 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/QZZ7S2522667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6abaed705a9fd8186630292c2f1113af9bfdc578c728ed1233ec82d2e007866. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZZ7S2522669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecd16a18ba6025c080cd1d0b0a142723fd8863ecec9cffd30a16c17795f38ed. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZZ7S2522670.