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 0x22d64ad52b227dc7e160c039945b98698d698634ba48ccc423cab81a4ee0d53a. 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/001adcab-32fe-4731-8d28-a74cdea47302.json and https://artists.proofprofile.net/proofs/artist/001adcab-32fe-4731-8d28-a74cdea47302.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Body Is a Message of the Universe - からだは宇宙のメッセージ
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 0x9a1c28a49a3e55b36421a3d6e9e02bf0adcd0df063a3d3a52c661e20f62cd972. 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/SEWRL1800302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2688b50ffb9d60a2f289dfd66f26a5c2c8e34a21e7465d6b6b71c860ab28c236. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/SEWRL1800303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5d3818298dc7304b891c1f0fe759d267df8f94a641728b045cb989ff8f9897. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SEWRL1800304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9797cfe9df882aa6480c928a4bfc887a4cb83819d8015068a517baf47e77a3ab. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/SEWRL1800305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e95543057a4bd5e6b5586e137fc8c3bb124191eb0e8f21bdb46be84a075bf7. 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/SEWRL1800306.
"along the Corridor of Beauty - Journey to the Treasure in Southeast Asia - Vol.1"
"along the Corridor of Beauty - Journey to the Treasure in Southeast Asia - Vol.2"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f428b55427c049cea760dbf063b3e3a932cc1702531e44c52f6acf32bcad01. 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/QM4TX2166297.
When Two Rivers Meet - Improvisation by Morgan Fisher & Shiho Yabuki
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9797cfe9df882aa6480c928a4bfc887a4cb83819d8015068a517baf47e77a3ab. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/SEWRL1800305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50436848b2e8eed7d8a489645308210afed9a253fb477fb7dc2c2034cb64aef. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/SEWRL2500901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3c182aec2cb0ca8cd6eaf4848ee4233ee3893ab0007c7480fc1fac5eb83c17. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/SEWRL2500902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b0a531655cddc9490066c2454276fe41b9f24ee8cdf96f921b2932f7bddb88. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/SEWRL2500903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b93fa55f243dd46019ecdaec695e9d9a73fb82c701ff07736299431b7014bf. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SEWRL2500904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fd65f10ae4aa6ca58de0a89e657b5dd17c0a06e483d8f51a62501658406108. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/SEWRL2501001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96acb5e08c9061ec5f709c651037ef1dd9cc4f98b8da5e12f7b7dcfd92e57b02. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/SEWRL2501006.