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 0xcbe8165de547f7df407ddc113c146a52870e4606350d1edde640301943caef47. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06b694c1-f177-40dd-aa0c-6c2c14b7e638.json and https://artists.proofprofile.net/proofs/artist/06b694c1-f177-40dd-aa0c-6c2c14b7e638.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 0x00dabe0bd6602d7d264bb88f1de9472d43b8f5a5f343c8baab8ea472c5cfd49f. 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/JPW561802216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b3b5f44549443be23859955dc338a2c998566a0ca4de3e4c8e4f0f87c9f219. 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/JPW562106107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce799bd4a86d8e3d86698fa7058af6924f90a99ea69c1da5aa849b4ef20ee01. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPW561906562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826127a16e4abce81796c8da81d2f711ab6968e9929b31163aff5d77c1f0ca41. 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/JPW561802300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25240da3a5ac9f684873ff843fb39aed6416260cc3e950186d5f19509164395a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPW561802382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7579b026b5b18f2951aeb55461c1d6bf5159b623db22d57191954b72768589. 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/JPW561802243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fec08e3bbcd9b62082bfe8e9e87808f47881086ebd9962078c15d9f47b15d95. 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/JPW561802245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050a9f28251d461d16a6e534333c70c1aa79501fb173a90ab23c202936fa868c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPW561802330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30d5a92e4ebde6759927640568833658d0b46a4ad41b894746d0e0cf67d9433. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPW561802234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf6029f540974ac0a6f55c751d1abd8d2213b78e0fb4922442b3837d0dfc669. 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/JPW561802235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b652b2d1e4626d60da1e4cddf6af2512bda362fb8df1f576d5e8674294ee9d. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:11:03Z), 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/JPW561906555.
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
童祭 (feat. AO) - Starry Night Parade Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87ddf4cabf43bd1d236d4a2d8d6cbb456c885550673867315875df3bbcb6c35. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/JPW562102531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04af6773cdf53b52857757f1fb70076b47c764e1839d953bfe84a05ed8332113. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/JPW562102537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b531466f638f10c75b116f0a32150e8025c7574cb2290d4bbcbcd6e19013f64. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/JPW562102532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aed5161742702bfba0da9f06c0434d4ef490a59fc067fb5af8af1a711a4b23e. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/JPW561802274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85244a794c09f4ffb0180ed4d8af489cd955e9a9985f8b9f0328094ca8cc115c. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/JPW561802277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7cc749b66c388faa37c384cefd03f8490bb9f170c9469e3a7de2432f53cca1. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/JPW561906553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012e288cce85b550cfe232973f52354a496e040b7fb324fcfbba98bfae719ee7. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/JPW561906561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d4ccc77de2e188416d105e87a9903795e7eb547e08e396221497c498ed8e1c. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/JPW561802346.