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 0xaaa599fe27e035a2cb3184c84bd75c190f84a79b8a9ae141681f0732aac88254. 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/986e1ff5-156e-4fd5-90ed-9ef06c4a2a95.json and https://artists.proofprofile.net/proofs/artist/986e1ff5-156e-4fd5-90ed-9ef06c4a2a95.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 0x6ca96d57d1e9da65b57825ce8c36ea4de32567d63083eb58ec7c0c0d0ffc9e99. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CNR381400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800b9c1a0be836dd9a2ed01bcba1788f785d5744503a7f86fcfcf05edd85dabc. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CNA792301090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0362cb342f04901f1ee2545e80e34f4e446c864e7c744dbc6f46709e8b5e1568. 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/CNA792301095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722297788ec6ea2909bb547024292f1c22907641e7308419390c07b00c58af18. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/CNA651200414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db477245ea0f0bfdbbf7c0297fb43cc36cec858098e6fd69c7e42bdc9489d27. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:10:25Z), 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/CNA651200413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbadf0d827c1d562d487314d682a79aa4a65ad1f67b310f8f87d7d791eb3b7dec. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEZ651600687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0233f5ca4f7b0d128d74654ae3b60ed07f13c712b6906ce5482cec94208559a1. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/CNF181800911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6918b4c06c5961f172c022096ff7ca56836549d110386af21ab72a80f01e463. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QM4TX1898982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54833efb111dc8a48b48d946010cd9fc097e4692cab69d1337fcdc80876d1a65. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QM4TX1898983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a278047e64543c5b049bb0bf4287fd2360033867d7fae38d75b63d7a13af22. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:04:44Z), 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/QM4TX1898988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ded1ecbac3d1bc5bbbbde5044221e395118e292598e01544026c7274c15a64. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:54:57Z), 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/CNA792003271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e69bf383449f1edd18e1b5e6e631606bd83080fd11e75364401a1ef2da2fbd0. 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/CNA792003273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9808503c7fd5c841f03f70b6afc12765cb6794a75ba00ea192cd68693df28a66. 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/CNA792003274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2cb43436efaa82efc16375886754663ff7220268424a73142a11ced48c4d81. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/CNA792003275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75a95da55a10b3e8e795379aff0afa84fe764e1f07597da3dfa6692795752d0. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:03:07Z), 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/CNA792003276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9fabc94f029de3a72f205bbb6e32fb0cbc96a78e06caab0fc7724cdf54b47b. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:30:44Z), 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/CNA792003278.
昨日的聚会 (惘闻25周年纪念现场Live合辑)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a368d4974f30ffb0df2d0c8546f3e60577554934bfdaadde40e8f02f7dce3b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CNA792500389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1e1876760216574af776ee6977f38ed711c7a4099509b55bf19384728d9cfa. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:10:38Z), 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/CNA792500387.