Dogor is a preserved canine specimen that was found in the Siberian permafrost of Sakha in 2018. It is a remarkably well preserved two-month-old male puppy with fur and whiskers remaining. The animal
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 0x1d3aed990baaa6d4c958f04ce8a8034fe655f10adad4d1db761e3012c7464738. 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/24e5b6b2-326b-460c-98e9-7d64540d1917.json and https://artists.proofprofile.net/proofs/artist/24e5b6b2-326b-460c-98e9-7d64540d1917.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 0x87d7f444330d111e978ad7aa245a12b85fc2a92cc601689bbf6086dffb9e7a03. 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/US7VG2004637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65624d481dc1c3df69de2d2321b7c5850c08f61e3e78f8386b39122b395a264. 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/US7VG1819362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89d39c640481524d8f98cc4c2304349146ba768a93c570fc25ce659172c63ee. 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/US7VG2065056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c39bca917879ea9082d408603d12cf17051b68e0fb94e1be11e60b0c4d945ef. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZGLM2051124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5ab401c1084792291dc4300832d93f2ae1535a5a7f8d8dadbb8bb6bbb56bb4. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZES52067655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63db8269086fcef1d133d648a973ec5731d0620764500617e008fd0362ecd613. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZNJY2019723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7aa70fb14eb10b8551c4c45b982ed6eada6facd519b5ea8c61d06e31fe4716. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/QZNJX2165970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75aeb96d27aeec1394d5445fb2006bee690e53e12879e3acd7987b193a531c8e. 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/QZW9M2232074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044ae848c5ca99308c383de47bc9281413b24564f28d8e88a76435b5e7ef2464. 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/QZNJW2019716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2148da72c387e7e311fcb19ba019537598069efdf123185c547ae23b97e9cb45. 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/QZNJW2019726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25df5ff86d462142d17e4aaefbd3d33b6892e9f12715935ccb22a90802f1254. 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/QZNJX2005352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4091e30bf7eccb4af9f30cad37992b2d7798cf4bce3aebd36913735adeea120f. 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/QZHZ52123037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc67d54bed6568b400fdaa1882618cebd71b9256ad75886dc5400f8fa027f4dc. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/QZNJX2097360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630045f02a764ed424ec3a9da7c4aa3efe617b598ec0d4c18770d1e070f425c7. 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/QZHZ52069474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2ed6441bbc19812a3ea657c865c4f5d877a224c0cff336ab964c7ca6a898bf. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QZHZ32085934.