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 0x24126722e6fbba124635ba73cf1d2a880ebb9ed317d527cea7d101f6bced4b0d. 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/fdffd3e3-2286-48d4-9ac0-edc9022c833f.json and https://artists.proofprofile.net/proofs/artist/fdffd3e3-2286-48d4-9ac0-edc9022c833f.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 0x987cfe30cf2b7b78c28b1e97f85ae659b49563bbd0e81e2a3424e6871276fdda. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/JPB602071322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1f7bff484ef05f3c96c1afa316460f7cc4f6b188829f89702fa8686224f8b9. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:39:58Z), 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/JPB602071323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e574ec12b3d7ebf3dd4fa7852d98b3eec69412dc88847ea60ca7288aafb8a1. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:36:50Z), 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/JPB602071325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998e49b523439ac1cd36f24d8fa85d9e7418a7c54d1286869da3b3874a475ece. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPB602071328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3c17e0e12360cfefd6c171354ca22eb96064280dd920ef03852ae2f5472416. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/JPB602071329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31697193457c782cbc8def4ca707f8e1cbc4ceadcb954d0dfc69c1c037c3ef8. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/JPB602071330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d397d75c350e4a87674d1878148542c6e19438d987db1a7ca2e4499ca952db9. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/JPB602071332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0522e1dc59fbdfb0daea9eaea29dc5d7ec3c2ac9e141a529435f512840b39821. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPB602071344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e207d25178b1a4d75be8cd92d2ec8bf27d55f0029cf9474175da344de36bf6d. 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/JPB602071346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4d8a6a3aa245e13fa383905d9045c27681842785107dcc5ec76957cdb159f8. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPB602071347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05d48029986755aec80f756a614e8b5a82404aba5523d7c20726f61d787d057. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPB602071348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaedd8af05d0fb003d859284ced7803e57492c392968f96241a01c8285606d83. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPB602071351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba7098b5c9e73e300c6fc0241f677a4bbe5065ab01550ac68f6b51165833267. 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/JPB602071353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48299785a4ab47e1863d5f2c6637a0e6cd251cbdaf008b1a9332e1fc447a8879. 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/JPB602071333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9feee054d373b0fec38dec25ef5c69ea260a0cc763397a593d0754bcaeab068. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:34:03Z), 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/JPB602071340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7892c0ad6a13fb0ed5ffdae704054e98935ce7dab59b711825afe4ac442d690. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:48:57Z), 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/JPB602071341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6edbe56c2cef31099257a47b2c1f0f04d45735e721442fe0220e5ce9d882244. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TCJPZ2413786.
Reconnect the Metaverse CHUNITHM Original Sound Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbb2a4b0a74531980e89e01d78eea5b31d0ddd3e81b6e92b80debe202c9a487. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPX301922510.
CHUNITHM ALL JUSTICE COLLECTION episode II 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84987e1cb2a81642568e9a2d089a4765bce8912b6d957222adf91f9a2af4e6dc. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TCJPS2248204.
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 0xbd92c2a5a3ca8650e6b8aa1e1e852097e77dbacdc0b74380829c0ad444eee27d. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/TCJPS2243470.