Exploring Birdsong are a British progressive rock band from Liverpool, Merseyside, England. Since their inception, the band have released two EPs and one compilation album. History Exploring Birdsong
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 0x3eef8fc19d037600c74d33ea2f4ea3b21382db2085e2f1c4cb7df951e3e7306a. 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/3804ba4b-9a7d-4366-9460-cde9e6591bfb.json and https://artists.proofprofile.net/proofs/artist/3804ba4b-9a7d-4366-9460-cde9e6591bfb.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 0x9e300ab5b32ef0d647872fa027db4aaf4fe5072033b8d2ecbffa352615e175d1. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/DEA451904420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e300ab5b32ef0d647872fa027db4aaf4fe5072033b8d2ecbffa352615e175d1. 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/DEA451904420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb817828769db56e8303964715776b5943fa707cce043b0bd18f136dcaa7ede19. 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/DEA451904430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaba6bdf7b720915effa96142c2a59a5f63ef186a2827b603cc5b22217978727. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USHM91707618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1833cfdad52ef08caf496ca25baa795fdc417640b2120d05303219fc870d30a3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USCGH1898302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43104f51c7c6b37fa0738bf21f232a548489b10bb040b9a177f92bee9bdf1d4. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEA452202220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcec4fe413e8a1aa401dbcc5153ea8adc0484d5c214fb5611b31db58fb3efcf6. 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/DEA452202210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fc640229d37caf0a89c1845c2689c2d0bb9eac272ff0bd61ed1b1f285c2194. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DEA452202190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7d12c70a5a349df858b300fb398178cbea61cdd37eb4b921bb702aaaacb469. 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/DEA452202200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcec4fe413e8a1aa401dbcc5153ea8adc0484d5c214fb5611b31db58fb3efcf6. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEA452202210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43104f51c7c6b37fa0738bf21f232a548489b10bb040b9a177f92bee9bdf1d4. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/DEA452202220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d2eeb63a33a1f2a501399cf5066fb9fe8788a4e9f3664c2c0341940ff91deb. 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/DEA452202230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06dd35229eb4cd9797dda877cab4455b2aca1cdb7615791904b6a80f6fceee52. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/DEA452305100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337f3a2abbec94a82c27ca0741adaedc2445e520af4d5ee127033f03901216e6. 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/DEA452402440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc497f94c4500c44ca285c5b38f474db63f12bc148992a9565075b393d1e24aa. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/DEA452402950.