Mahina may refer to: Mahina (mythology), a lunar deity, mother of Hema Mahina, French Polynesia A.S. Olympique de Mahina, an association football club Mahina, Mali Cyclone Mahina of 1899 Mahina
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 0xedde07a313b9dbbebe17a26557a9432870f750753ceec8596de2def61a43865c. 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/897676ab-8a14-477a-a7b2-a07879c4152a.json and https://artists.proofprofile.net/proofs/artist/897676ab-8a14-477a-a7b2-a07879c4152a.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 0xf4206807cad2550efafa019f05f76c882ded76ccc3b9a20d71f4fb296fb8fd48. 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/JPV751901589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1407f24476072e99c4fc645a7a15215c12a4a08cfe8ca569f589177258d7228f. 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/JPH372000145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1407f24476072e99c4fc645a7a15215c12a4a08cfe8ca569f589177258d7228f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPH372000145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b09279cfe0e5c21b8d24736f5fd273c0ac1d486330cd90ea309f5bcb5464d5. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:20:51Z), 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/JPH372000226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2340d38aa929e4b46b36af17f086615c46f3dbce7e2b94291940c897f5f4233. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/JPH372300081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeebcb2676047b580c04730fe47f928894f5102777c2cb33cbf2d3516d7372a4. 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/JPH372300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413aa1b3bc1ba2ff0b708ac3c0e9d9d1897671b759144d61e06ef769dcf19f25. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/JPH372300152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a696538a315a09897be0c5da66fe42e01ea51cd3e914d51e4017fd0f6e9c3e. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/JPW292025001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9918287d22df9dbbe108713e6996c62571d6029feb8d7eba546f0e5fe1c169d7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPV751901079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734229a9bcad813ba407e3c4711bf4563921216982b828f875c0f4ba7163e39f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPV751901064.
MementoMori Lament Collection Vol.1 (Disc3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3852de923f9fa1d7db8b59a92009fa522b64d6eb72094eec498ebf36454185. 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/JPZ922308634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf147aefe2c6e21d59de25de33279b508be51ed5b626e5229c39f98330830e32. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCJPC2484954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e16bf00040af37b40e4809023982865418e8a0200e41491c1498a1baefb382. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCJPC2473978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16f49d3283b86a489f3c31ddc869b6cbc80704409c861b1df0d855b1766c9c2. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/JPM591001417.
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