The face is the front of the head in humans and many other animals that features most of the sense organs including the eyes, nose and mouth. Many animals may express emotions through their face. Sens
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 0x9e5e9bda6abd0520075105db3a8768f8e9cba1f01f2c06eaf9950d7bb7c66de3. 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/7991c784-19e6-414a-bf29-38702785905b.json and https://artists.proofprofile.net/proofs/artist/7991c784-19e6-414a-bf29-38702785905b.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 0x30d3628fca376b7dfc7317733c59ad46eecf85a733a25f49c63356b169c7dc69. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCADK1784741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c681b274e4b90f6793b03ea7aac0c820236311da1d72fe02f75ae2e2384b95. 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/GBKP91600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b61d3ce649ed492168307b13c8dbffb52be4298d5fe7cae54e9b65f835a26cb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMEU31617432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d12a7166cf42213b2912db36e86e690a214460d7a9c21e078eaf7d88ae675b. 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/QMEU31617435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105ba0474bc3c90b0fb9576b1f971ede15e58784d5709c6cbc4a128d3f0cc6e7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMEU31617436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2cc850f7ae5311f2daf731cacfdae66ee0b7e8ce0fd60b39d7502e3b105d72. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/FRIDO1910452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657cc9d84bb10fa73c89df2d3adfe516486624e5ab075e80c1957b666a70be78. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBQDJ0700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31fcc16b4035c80fad47e1ed6e0e3dcc38e54cc8ea5225b8b192e768f44663d. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBQDJ0700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7572296605420cdbcd4b10c39627002914f94e95d4f4f56a419163a4c4a240d5. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:52:38Z), 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/QM4TX1909661.
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
Breaking the Beats - Compiled By Dave Lee & Will Fox
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af0ee9cf70b8b5e13d58d49bc2f1054971bbe03cc8972b56fb17e9c5daf173a. 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/GBEUE0901575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a3ffaabaca4a2d9746dc990a6a40737ccc983850f7651e87e6698084b5b8af. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/GB2LD1700361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9ca537e2b929874c956a42bd881cf0a2331a83ef699f46624edfde0c5e615a. 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/USBEM1100181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fb998701e6a6269093614b2231c3034a4a71c5209266257c60dc81d4eccd1f. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/USN1R2240001.