Albert may refer to: Companies Albert Computers, Inc., a computer manufacturer in the 1980s Albert Czech Republic, a supermarket chain in the Czech Republic Albert Heijn, a supermarket chain in th
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 0x5d7d89e3b421d40c5ea9f44b45848647053d8e0c1c9a978a5ec38f0267979df3. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a44d9350-b258-4ba8-8ef3-31dfe31a2c66.json and https://artists.proofprofile.net/proofs/artist/a44d9350-b258-4ba8-8ef3-31dfe31a2c66.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 0x3b38ea0e2bc942e004006e5e4bbb8acd86bdb2ef2c9c4f2f05a49d9232b6cf0f. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/TCACU1697522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d235de37c2b04799882525b26e7dc989e1acf4269cee80c5cdce2a0207641b. 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/TCACU1697525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99cdb04db4928e182fd7d3f08a3357a4cbc8724bb0e8a6e5303340f91e6b4c7c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ITQ001800193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b96f3174e79d0fa25ba04cdf16ca3d4da04b69ff6c8292fe28f5006ba97f709. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ITQ001800198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355377ecd08ee296b01dec6e313972564b83b130c8610ea7b5ad057b673072d0. 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/ITQ001800200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf987bc026c0351fa5908488c402bdbb57d31e62d78dc31905f438a433e081fa2. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZFZ42086040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a4ecd922cebd362803ab7774a27bcd9e7ec74ecb0e6c5eaad58d807df21866. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZFZ42086041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34857a3017d3d5bad52224bee011efa5e4643a20c74b56b6bce1e82c23911fcd. 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/QZFZ42086049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8a564c82bb6d47b1d4c5a19bdf4cdf760c72d291375d5d0c7ad259cf7ad018. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T04:08:24Z), 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/TCAGE2227769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167d7c4507eecc38426be81018831adc8965457518a67a5dfe166eafa2264153. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/QZTAS2228457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe7aee6e1337807aa6db59b29f7c6063f02ee7e3cd1c5178f00767bf430ae28. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/ITTEW2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e3ddd422506fa9104a1a0137a1f7878384ee4e55db6025f5a0711ef78fdfaa. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/IT7LD2301270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a61862d983c2928668ac4845630fab14264d05e5af643c6f366c650dc3237d3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/IT7LD2302136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e3ddd422506fa9104a1a0137a1f7878384ee4e55db6025f5a0711ef78fdfaa. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/IT7LD2301270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7d7517f04e1ec740af111ad8aa84dd0be05f3b1b89a12910709e41efe6e580. 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/QZK6H2266471.