B6 often refers to: Vitamin B6 B6 may also refer to: Transportation Automobiles A generation of Audi A4, manufactured from 2001 to 2005 A fully armoured version of the Bentley Arnage Series Two
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 0xcba44125045969f677ccc8ce762c3a267d8e772fdb5a0ab93ebe9b115c638a68. 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/b9c72bf1-564a-477b-b181-a25f6d5d7ff6.json and https://artists.proofprofile.net/proofs/artist/b9c72bf1-564a-477b-b181-a25f6d5d7ff6.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 0x4f5afd7f7184a4cef19620ba5a51f0cd2bca7b32cbf49b69c62296a8c288e88b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZDA72224449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a108e5baac7d6faa2bc7f98955819784d0936a3ebd15f98cb9d5f3ce666602a. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZTB72216570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e8ffd5540b01a2d0bcd21b704771ddac44673b7c6e0fb959023253f87a4e52. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZHN82382262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e9bbe74afc461feacc10def293bcf5b38add252406933e080f0951d5a72b7b. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/QZK6J2308803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c94dd4f092d1ba1899c3d181def79e662db75ebbefc2d09f2dfd137306ed70a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZHN62442592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57207a7f53a93a461929c0ec19b7626f26c44a98777d1430db3c8b163127145a. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZHN62442594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60da23b3b8aba1d2f58822c1a330b04e494fdb8e1735bb6a99af6988002b06bf. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZHN62442595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68dd7d994a2eea082208792c05bc53161a603384fd2a69b386cc3508d7b09687. 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/QZHN62442596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62de967651f34b5c9a0179d52a39936afded70f97e65e92709cf58fdad9d8f5f. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZHN62442597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48e864521fc0b0b67d0107ded5fca4eaa8cdbbfb81f0997173cbfa8beaf8d18. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZHN62442598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa844a4e4f634851b234b5113ee1bf86006f076be42a660ab6181f6e2fdb1e089. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZHN62442601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc80daa23331f0482d99ef3d6dba877db6b7c3145a47c90ccb72bcb0272ac4ec. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZHN62442605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c5af13f8aa7c8bc3dc441b6b2607b6d838e1557fce84e7663515c41093da6b. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZHN62442606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadcc815caaf5f9c030669215d125a80ca701f2e54b2972827236742bdf8283db. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZHN62442607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecee3c42ac7408606a89fd2b06050777751c484e3027f1e63a47d110eefb450. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZTAY2331062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fa45102879759e843533468847a1f030438dc17213c503c77c5c687eeab26c. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZTAY2331064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb695c3485c52a644f2069c6aff94154d87a25ce37b76b667f32b10342c8da864. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZTAY2331067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9e045607164dc8467b82565e4103ac1ccc43e7dcad9fa8692a573ce050ed44. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QZTAY2331072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a73081972ef2ea536abf1386bb6bc914f186330d4ae0e722819a945c26a429. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/QZTAY2331074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2e2d069ce13a96cda59838b076d3bcabd753921bb85f6a966fe8e075fe65d3. 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/QZTAY2331075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72d9c1de40648e35c0a1ef4bee440cebad3f850492fb872f05c2a2b89cba7f3. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTAY2331076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a73cb807ad3c257dde4c84d97a880ebb5aeec2f880fc882f75c98d05d4b0ab3. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZTAY2331077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9bafdb0651d1247fe53e5cc87bc4dc38316217b77d9d5e2061faa7a3482a929. 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/QZTAY2331078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031028b2460996ecd78f1028a35254e14bc8153fc8026a09756c5180eaa84098. 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/QZTAY2331079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8df676626d92afdb40eae33cbf9d5669d3cf1f12a73383d7862a1480be3988. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QZTB22495619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5771aea3c6bad7c8f953deae2bf8c9bfda457d1e5e92707b743a04c35c3f656. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QZTB22495620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f305c53c11e5820c553cfb1e86fa046472428639018b0ec368a1c2286d8cb2e. 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/QZTB22495624.