Facta may refer to: Fair and Accurate Credit Transactions Act, United States law passed in 2003 FACTA (magazine), Japanese business journal FACTA+, a search engine for biomedical text mining Luig
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 0x723fcbd23938749372faa1fe0d5ead119ac97acbd58a6bcac393af6a5cb04062. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab58b321-890b-40d7-9e33-482026f92e7c.json and https://artists.proofprofile.net/proofs/artist/ab58b321-890b-40d7-9e33-482026f92e7c.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 0xcef8e5a9aa4d144d2eb955201b4271134d5f903463f12311c99e4c7fb44035ca. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBHLW2100222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d14eb21f675aa698e7da5f7f15f22be8f5736ec7f064c1176f61ae1f077f825. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/GBHLW2100216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9342350620cdba50c51b13816eb6784e2db32aebdb2c65aa9cc0d3ebe042237f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBHLW2100217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef8e5a9aa4d144d2eb955201b4271134d5f903463f12311c99e4c7fb44035ca. 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/GBHLW2100222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e4a8d8d60fdafaf975ca4aff06e7a369a85ddae9a216d789e766b83d2a35c6. 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/GBHLW2202156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d56a5226c7050ceacc6d28914d39fe3c13806da7dbcb281a7412bc73e96c28b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTRX2244279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b941c50f28d7a2988a2db7f65658902f50c6b3dbb2ee358e3f2930ce68adce. 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/GBHLW2400940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7b2904956ac2ad5c86c5f2ec826f1c529b6f24b98e5a92c2697e706a30a966. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T14:02:19Z), 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/GBHLW2501000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3481435d95c51084af17c9c105521900ac2927760d5bfc0fe7e0f78fd2d72c98. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBHLW2500999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7b2904956ac2ad5c86c5f2ec826f1c529b6f24b98e5a92c2697e706a30a966. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GBHLW2501000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9730ddbc9852364387a5f3501fc78c7f58e2f01954fab9f59f285cb300a1d56b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBHLW2501001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efc77442caba27603a918d9aef39e14ff4b8a054199289077aa62946589cdba. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/GBHLW2501002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0961a9e0061333b2163882832eb8fcb8234cc0da5261f9f896651dbb16976a5f. 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/GBHLW2501003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3722fd83604c71af521224f5aa8efb9a12d6fd2c4387b977d163c11044346738. 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/GBHLW2501004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144f7d8641c29e99a537d31c131baadb457ff77bb06c527a80a3b795a9a3816e. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:11:31Z), 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/GBHLW2501005.
Joy Squad / Primes (Facta & K-Lone and Parris Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693f6304d3541bafed7b874b1aa02c9db8079991fe8a1e3b5393c0bb473260aa. 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/UK7MC2200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983c1fce1578e3b688eec8c88da653dafd3ca65d07c7e2959cf67275cf44ad52. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBEXH2000124.
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 0xcb43a3d5606ad2e032f13662cbc6a59645039ff41e307be27f0d4cb4bd8ae0fd. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/GBHLW2300804.