thumb|upright|A glass of orange juice thumb|right|Pomegranate juice Juice is a drink made from the extraction or pressing of the natural liquid contained in fruit and vegetables. It can also refer to
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 0x3a0d24ed5b1a730b8d5d4bf5929f5cdcd50a05d8585d8950cf08c5b774ae3182. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/494ec5c0-8d9d-4e9d-bce7-7449218c1fe7.json and https://artists.proofprofile.net/proofs/artist/494ec5c0-8d9d-4e9d-bce7-7449218c1fe7.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 0x452d5ed5b83f40fecb287ef67ea2041cd1d064d4def0ee4da49bbd48e68c1e2d. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/FISBA7600701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00958d19f84444b7884e48ec0e66b030434ac45bfc728017ea18fb98d65e842d. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/FISBA7600703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22059ff6a1ab52037114f843c554b43034614af036aca42c569fdf48d2493891. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/FISBA7600704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be88b71adf745d473e074a02f78aed49a71c85abe8fc7169cfc408ccd1df10a. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/FIUM71600387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7147e202d1535e279a0f8777a4247ae7503f45345a88a2d2834768f75a7a6f72. 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/FIUM71600388.
(We Want) Lasse Vehviläinen - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9080617604806fd67e2de5b01f0cb2c1c35b32a6979d0da2c9a9012f6dfe63. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FIUM71600389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d9ce55f7546bdeecb68c168af6bab53433fad99830b5f7e4bf55bfc0756e42. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/FIUM71600390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e27e25e4ccd1252d2b11239421e14217f7471d026f75ea698eb82c12ae07d0. 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/FIUM71600391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebdc30b96ac106ba59072b71a2d5a503945c7db3eb90dc96f714bd1f64a96d9. 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/FIUM71600392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb885158b2334c72ab89bc23037020e20333c7ac0b844d04defc379d0c4df20b9. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FISBA7600702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00958d19f84444b7884e48ec0e66b030434ac45bfc728017ea18fb98d65e842d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FISBA7600703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00958d19f84444b7884e48ec0e66b030434ac45bfc728017ea18fb98d65e842d. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/FISBA7600703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452d5ed5b83f40fecb287ef67ea2041cd1d064d4def0ee4da49bbd48e68c1e2d. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FISBA7600701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245fbcf47d62c29d8f1c0a9d547f591fa25df2fe236814891edc1d3d0b25ddcb. 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/FISBA7600902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca89f58d185631fc909b33a185839cadb0c187d22895bcd2e390ef0a0124b18. 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/FISBA7600705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca89f58d185631fc909b33a185839cadb0c187d22895bcd2e390ef0a0124b18. 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/FISBA7600705.