Panther may refer to: Large cats Pantherinae, the cat subfamily that contains the genera Panthera and Neofelis Panthera, the cat genus that contains tigers, lions, jaguars and leopards Jaguar (Pant
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 0xb530f471ce506026af91cc25254fe3299e1668756ea5bf0460eb9636eead1167. 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/12eb5e18-58db-40f7-ab50-6f2df1b2e558.json and https://artists.proofprofile.net/proofs/artist/12eb5e18-58db-40f7-ab50-6f2df1b2e558.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 0x284d3e739d46628915001bd21cda485e5dc84afe5e63468aef776636c3d635d7. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GBWUL2197781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83248f56197c733c1d961818a641fa4e6f0d266c0207c47e12fb6c1d82a87040. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZTRX2106258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa784fabb725b75f1e4274ade78ad24e59f9a54d91121c84d1a23011219f50ba. 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/INS172301288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2ab04499b66df477d6d88da6acbb56591aceb44d7f9524e3b9572490fc1ae7. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/INS172306683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c98e87e08227cc66d4ef589bd0ab6b50771adec16f4414a6829d89f111961a. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/INS172306619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7fa58371414f7b15999d36a6681bfef4b2c4747506088fe5d3a8da5876eaff2. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/INS172307894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c98e87e08227cc66d4ef589bd0ab6b50771adec16f4414a6829d89f111961a. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/INS172306619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9106c173eb34cbc19532be99db3ed1d377055d29582c37b8cb80da33580445. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/INS172307897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1349f9bbd30b7bf48cd6843e0210ec02686db68d68458d72370817cd76bdaad0. 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/INS172307904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac2c3415c042a1b884ce0a096ab9e1830a77bea50c61c276d92bb0dec94f95b. 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/QZ5FN2419782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0255425dd53e6863cef55b5c426c39e8dedbf8d060011f093b3da98a7b909ab8. 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/QZ5FN2419785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6faf92a16b420a795ee2bfc9b44e480970b9a8f1cd7bf51e42dfbff1d0c52ab. 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/QZ5FN2419792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9630fba09d6b4668ee298abf04062bd6ccad21e44d188f430d848a164abb859. 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/QZ5FN2422762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6101a30459e758480a30cbfaed17d134bc6ca4cc5c464547fffd8f92c370133f. 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/QZ5FN2419794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897b9c1f74a71b70ccb275c205f4380fcc1d88f4054e7177b4738c9b4d160bd6. 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/QZ5FN2419796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04601ffc9ad2edebe68c77a639c8c18194b22210b4f4b306eac857bc3f03fdb3. 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/QZZ8A2366628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73456181e5f3500eb5206074ca03ce3ae96d704dd3f4f571b63a514883cf2c12. 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/QZ5FN2419798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b595ae91c6f039a60bc0d03676a7eebc19020a0dc36d95cfd51af7e6778a20d. 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/QZ5FN2419800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5979f15d250c0e9217f92b49e04d852a3fd7a7d2ea3ee1ef678021703693f9. 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/QZ5FN2419820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcad861cef23bff146d195d472cd526b953e941671b8e46ec8136081a7257865. 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/QZ5FN2419821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f0da1d8c4b5f83ea2be43e637cc9be9008c546dc0bd321349bd0e1b99d9943. 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/QZ5FN2419822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b31d02f2b91583122aa3b1db60dc46b0b92d07183b5457d9c062616b74d45d. 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/QZ5FN2419828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9726ec00e58747416ce4d304d77efc6db4ea7d58f11b23c343ebbf21ff15e9b1. 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/QZ5FN2419859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c003eeae43cd206a65726c907c52cc656eb2664631e1f193ac0e30642bb4aa3. 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/QZ5FN2419861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3286b9b88f60bfdf2aaaee190a01a11543992fd7e21df8503287e06c44f66db3. 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/QZ5FN2419863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b0cfbae51dfa5166c7ac86eaf3d6f0266ce44d32d25b82d649693e8fd9484c. 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/QZ5FN2419865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3587ed6c90f0c27742f489c16d34d9e0a0b5c2c7b2c48a4044fd3c633a7c7eab. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZWV32453567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7176c1952c0b5b848d689f598da544e95bd092d5f79859aefd53da03cd8c0596. 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/QZZ8A2418475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6757766eb34adac420eea5ad122c1710d9ea58a24ddd2ca0ed3c95fe5b239416. 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/QZWV32412065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3587ed6c90f0c27742f489c16d34d9e0a0b5c2c7b2c48a4044fd3c633a7c7eab. 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/QZWV32453567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2480d17590c1a1b2cee889565125a9e89072c48a60020fb2f33f80c9fb7614cc. 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/QZWV32468920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593e907620ac0efab29c269f1caedd4f47d0102ea5683fc5137798bc124153df. 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/QZZ8A2418486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a82ea3163d9f4c6ab60f8ba347029eb320f7adf71c4e4b8a0ae143db164f5e4. 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/QZZ8A2418487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b678c011050f1327fed836a293cc4330799fed087a2e03e982cbb05249ead2. 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/QZZ8A2418489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2cc4c10d86742df63a1ed9f9dad053ddb9a21a6a30ad9859b59ed6bd9f7019. 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/DGA0M2326182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec4fa88475d02dc2f38899101d70262ced29d913991e11107166a6d0bc86212. 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/INE182220206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a394560c5b8f6589e71af027156bf5e8dba028f3631060d9e9cc288f226aaf. 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/INE182308356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3236920637f2a78625235cbe160772c694cf78371ab5b7ae32b62695f35c7cd. 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/INH412211921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa312177c308681133760428065bdd0c40b04d9aa81341c331c6d4133ed9a7fb8. 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/INH412213008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc719ed273397d8f9227c015e38fb5c7087121b3046809e477d8f43935a24778. 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/INH412213333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc536abf206b252792ce1376f4131e430eac051f33a265ca056f2afe34844f9c0. 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/INW262405904.