The tiger (Panthera tigris) is a large cat and a member of the genus Panthera native to Asia. It has a powerful, muscular body with a large head and paws, a long tail and orange fur with black, mostly
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 0x6c44426d55bf45114a111d7453a5d772953e0e53276928249da00417a158296e. 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/9d6d46d8-8626-47af-b0f7-3c9d12b53e60.json and https://artists.proofprofile.net/proofs/artist/9d6d46d8-8626-47af-b0f7-3c9d12b53e60.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 0x37bd9748c32ffd8b3cab9686f5a2db1b409185c0bb2da16e8eb8867abc937305. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6MZ2300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a17ca30e1e7aed347fcca8753120b651e30e7bcb7ffb0f0e8dcecbc891ca713. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QM6P42216053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec7b199d1659b62c06492093b37abb6c9df26182be0d9a58b3aca1243aeabb1. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QM4TX2330026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03b8cf938031368fa268f36afe1535ed9848ad083f59b011d485f57b5d4f513. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/QM4TW2371706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65ea597bc38ee429d801de5d5173317bc724a3ccf38e500ce8d2a793d5684d4. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QM6MZ2300114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6d3b5c58b4f32acfb2345f13d4e80a581d65b161b52bbaa481b1454aa59117. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QM6MZ2300117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434961fd8c2f04d49e9b542368e25b1711fa591f9c2677e08567172e6ff5ccb9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM4TX2213008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7eb116c07fbda5e4aac227368e2b06d4f6573dc777c60d40ea0f9cba9bec3a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM4TX2213036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae1f14f9ecb3f6f130aae52f40dd6252c888d9dfe54946f9cc8eac81fc5516f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMFMF2125943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f306e5a02b5285eb7f604060ce20c791cc50a643b45e941756db25223b774e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM4TX2213041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fb7906f731c827f423e81f8d5da51aa3e3643fe4db9f4fac0fd768ea704241. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM4TX2213043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c83b092d143aa6cdbdaf9c9c91ccec9d6b0d22c504dff0de298b0c2233661f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMDA62127021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4847f821520aab3d73b1dc9389281cd550ed983e9700c19089bec8157a9ebd6f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QM4TW2238237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5983985e144ec83652a74fec3463e338b4123e8aeaf01742789423879654dd. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QM4TX2213023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d712ec9942447125b632bf881c9a9274e6e1b57332ebf2d4f5b070475cd7e3a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QMDA72133863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada49145c4656abb24651c171bc6644839627b0e78bc2d074a7b641f9102299c. 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/QM6MZ2464699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9f741aa923b39ce1bcd4bbfb0563aca6fd0c28856a1cd370e602e1256a2049. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM6MZ2291693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c692df0a63f4dab3fd74c168dea7e15a1b88d91df73ada373f640590192dfff. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SE6TI2020161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ad3977bc6178298fa00300c7e7e8de008719d6372fa7d37bc4e223d0386d2c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SE6QE2094806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3cf3714849d24067b9ea1f004fa96c45666b67aca26a7a9b560d21ff7f6eb1. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/SE6QE2094804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780d456d7cb6e16289d3a5564afacb9ee9c00b9f745a0c00b9e0365658c1f01a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/SE6A92058812.