Akiko can refer to: Akiko (comic book), an American comic book Akiko (film), a 1961 Italian comedy film Akiko (Amiga), a custom chip used in the Amiga CD32 games console Akiko (given name), a com
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 0xca6907652650a7a4737627a5cb8649d86b4cbdc516142e712dcfd9809f54d537. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a57c9889-0635-4a3a-8367-dbecba5dcf9c.json and https://artists.proofprofile.net/proofs/artist/a57c9889-0635-4a3a-8367-dbecba5dcf9c.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 0xf21f8cf825583dd23ff8a55b20983833be660f52d12c26574d90095a2046a1c5. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/JPPO00413671.
リトル・ミス・ジャズ・アンド・ジャイヴ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72903ad948e7a44245f1f469f4614129a31970149e94fdadef8de4eb294ee64. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPPO00523900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4db0834aa204b3f4d5535157707edaf779ba3f9b8006c79184c6c1aef5845c2. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/JPPO00523930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6353514611b0780097d111e96f6106efd773a6304e4c1d02c79982c459c9857f. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/JPPO00639030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ab9969d59a154835e1dd0beaafdf54d9422552b8093ff5719c3bee883e8ea5. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/JPPO00856940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164232865a54d2afb4e77db59de29dc8c5316b24c577de50123b0c989a41f3a8. 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/JPPO00856950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269d0314e4c394427d90c2def1ae245c17073f4412678503f118270f91f7cf5b. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/JPPO00856960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03bacff3ed0e38b0bbc2f7370df05ff551a22b0e6746f20258d04cfe2af3e3f3. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:55:50Z), 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/JPPO00856970.
ジャズ～イントロデューシング「ハウ・ハイ・ザ・ムーン」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69746a4a4c38d4c145d3c65f15fb7dbe29dc4ecd63ed3cce0e33cd9530fa2962. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/JPPO00856980.
‎Swingy, Swingy (feat. Chai-Chii Sisters)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf6bdc46ccdfe73e0986b7af1abe175f38417939f99b9ed6f137190f9289abc. 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/JPPO01408974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731e8c205c7730a35c8f768e7e3341de99acaefa85c4768c4e4b3ee6038741dd. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:54:33Z), 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/JPPO01408979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe296bf50fa71bceb21009d90131caf847e2517e5227e62a6e82615be97532f2c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPPO01408981.
I'm Gonna Sit Right Down and Write Myself a Letter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7121fefcd463582fdff2a3cb9a82334c3c6075ee8e675f9d55916f4524895b52. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/JPPO01500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fde88dabd4c2f74d04f7daeb1894942ee0a84b14e499bcb73cbbf83268b2dd2. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:06:54Z), 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/JPZ921908715.
Funkin' for Jamaica (feat. Mbanja Ritchy a.k.a. B-Bandj)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be0f6bc6c2cba45fac62f612c1b08a28069752361382eff7dd2f9ba991b0143. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:59:27Z), 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/FR96X2267489.
Love Theme from 'Spartacus' (feat. Mbanja Ritchy a.k.a. B-Bandj) [Clear Day Mix]
Love Theme from 'Spartacus' (Clear Day Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53adb3839fe7568f9e37fcbde8205efb18158c003f6f62d2b3fd98f14c5ee614. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPWP02501082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120ff4945b23312ebddaa0d5053d5297d596402024b76b05613ececb2455e29e. 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/JPWP02501314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbca1618bb85babc5a659b9b12594c8e2b72e7e367d383a8ca68b1a99c390645. 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/JPZ922103183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24adab88aee3c65998da45e5284fa3f75724e9cf382b46ce520615d463ea64fc. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEQ920800065.
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