Dolin (feminine: Dolina) is a Slavic-language surname. Notable people with the surname include: Anton Dolin (ballet dancer) (1904–1983), English ballet dancer and choreographer Anton Dolin (film cr
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 0x3d0d2cddd00ed862a7f564d912684d7734ab9339f9efe6cffa1ba87bdd36bdbe. 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/fe119728-db97-4c69-8a82-0058f49f53db.json and https://artists.proofprofile.net/proofs/artist/fe119728-db97-4c69-8a82-0058f49f53db.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 0x1e299ec5aa3441cc6b6427954c663cedda25957d2b038910639ebb518e0e9154. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/GBSMU3662769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7f33cfc2cebcf77ba72dd152c7d293854cb064813f77fdfb358354c549303c. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/GBSMU3662777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8311129150661d8e2577c742f4e3849f1c720e2134138e972bf71e73c20305bc. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/GBSMU3662779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96894e30384fc51d53b119099af55c0453987396460a78164e276a7c58a233a. 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/GBSMU3626156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6b73593685720a87a991333f6371244d110b2329de3e96cbf00565a681a074. 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/QZ4JJ1806755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe45c5d5fd88801a94a7e656ce1803b3d3ede11ff4bb94f91ed7a37b8c84d002. 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/QZ4JJ1806756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba147dd7d8993816dc98ac59d40167a6644492be96eafedaf7af7f11fd9443b. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QZ4JJ1806758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3404f75db5e2d7eebbb7a3e350f3a11173b218b6731fb7554c831c444cb8a777. 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/QZ4JJ1806761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2c5d6a2441b0ca231be6b18cf7f1d359fe3973389b1da04506c2216670469e. 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/QZ4JJ1806763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399d7dd27787c43eac3cd3729e6b91efd4241eddd99be6dca260cf7092c0d716. 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/QZB4J1859223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f544441567d66f63e69bc60355988e0927c9929b2f65c2656a118d00419bb7. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QZB4J1859224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbefb9baf7e698892e94680739500f1752c22bc5f3de83c1dcdcaf7899be8242. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QZB4J1859228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f61d1c6442995d683da9f57d206dbd0e09df8c9312d0a544588b0c72799c2e. 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/QZB4J1859229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3fe54ca18b54165d562df000f2c5ca31ca2e8d08e1f108b1084b9c81bf07bc7. 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/GBSMU3260016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f42393d6a46602280c258188c02b8558acb0d85c92217cfe0b2ea06f2e609fa. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/GBSMU3260015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf309824cbe83f0898335b74d3196f83b1689d1ab14b1b13f4db448c04dcc43. 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/GBSMU3260019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd51609f3e63f904a52143870ff4cc0bf5b4ec082204cfb82e9eece6d616a602. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/GBSMU3260022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9473ea2402a7089f7499b6854cea663ae2e486dde17e8b8851e3a63c1a290b43. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBSMU3061148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229246898d5857c55b9b2699ffbd98c0c4052ebf3d506b1bcead194a9e1d7ea4. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBSMU3061157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb31fb4ed0dabb01f0267749d717713d7a7b5db1f23b032097f312495d817ab7. 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/GBSMU3062849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa310331b35f77c936af0943877748182bf688ca23ff2452068cf2210d189e59. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBSMU3062850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828d8f58808dadf681f5465ef5a4322d913aef9b1e8d12883f9195a8088fe3c3. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/GBSMU3062851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f6153ff08b69e2e52a89a461dde3d44842979a0395a8688008c3dd245a540f. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GBSMU3062853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ee4d85d6ce4f70d807a67fd085395a170718266e455d0f9f47f485ddc4f01b. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GBSMU3062855.