A berry is a small, pulpy, and often edible fruit. Typically, berries are juicy, rounded, brightly colored, sweet, sour or tart, and do not have a stone or pit although many pips or seeds may be prese
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 0xa71135e6b40802f73179baa9859d2a3536bd9c593f8e9a51780f99ccad4dc444. 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/199de388-748f-4507-a923-1c302ca0bb1e.json and https://artists.proofprofile.net/proofs/artist/199de388-748f-4507-a923-1c302ca0bb1e.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 0x97dbe38493e630968d2f12fa89ebb782e47abf0576db38e57b976bbb3e3326e3. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FRUM70701369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e8470d645891e682bac084bcf52420fd85a4bc1259cd41c7e742763d1d2c53. 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/FRUM70701368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300b8d4b3c99bbb8526808ddd80e40ecdbbccc0239a989f91bdbbbf2da580b36. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/GB2GX1011454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6483080dc3de54a50b7287d03cd1186a8aabd4bf8ed8fdb264adf280f8bd3f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GB2GX1011456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7f30867aea1a2500819fd837c3a0247a01a071dddf8bbe0daef39071845740. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/GB2GX1011458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecc739fb30076b76bd7b64a74be0c9214ab1d71c69e2857a89afbfb54402e30. 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/FRUM70701370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589189f03508b49eedd394dd243c2caaff7fa60511adc755f402efbc7e29a4cc. 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/FRUM70701371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf4b2200533c49baf1963232a35529deb8c712a0d27a282c20d49f954cc03aa. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRUM70701359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b3cdeec049b38d9f2cdefbde2b12bc49740ae36337c8e2abc022c4cfe642ca. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/FRUM71102659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46a893f2b9a9881b5ea438a61d96abedb65499b9b4aaf34ae1c0aca6cfb0d9c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FRUM71102707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd873c580523eae844f22eb09662455502a503ce2120d2548165b13359fb7319. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FRUM71102661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff93cf1dba1c36a6b110258df3b265aa74d509464442db1a67d75c1425470fe. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FRUM71102728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef0f50d5147d459b5e91010fa481ffcacdec7653304338f394d5c6e20034c51. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/FRUM71102730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78165beb048a1a56d2a68e46d71659dbc0821a97e3b20116f2bce6082d7859d2. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/FRUM71102731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220881d0fd6e9c04eac6e37fba02d118a3cc9f6321131992e9a331aa4342c674. 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/INX122025018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3556a2436a9326a87d5e17e9274580093677855dee56825bec8098035ee1003d. 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/FRUM70702375.