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 0xc4919dedfb591aa27f7d4e8310d46734de4dd869e9b0464211769c2620d58018. 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/a04785ab-c04f-4cde-afbd-3067e38e8d88.json and https://artists.proofprofile.net/proofs/artist/a04785ab-c04f-4cde-afbd-3067e38e8d88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
light it up. (24 blunts) [Culprit's version]
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 0x500d93079a9766d8e353115ac75cbe1e250bb28c5709edf16c39de0794ab6b09. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZTAZ2393778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500d93079a9766d8e353115ac75cbe1e250bb28c5709edf16c39de0794ab6b09. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZTAZ2393778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a675c7e236de88f11578edbfdc7737665b31252c7f5c71855c8e9f2ce8d852. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZDA42388373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2a57082f8ef101921906a27b78c17b5adcc61742bbd770ebc01c87cf29c3a0. 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/CHF032413148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2a00a83138431eb4fbe9797e4c7326e3f15dc2faf01551471e8f9946b02616. 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/QZK6M2475839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b683908cd800387afe0ffdaab4d0ffdab551f72f5aefe728b504d23abe5484. 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/QZHN92496426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7194878975c4b6f07de33e4ea725175fbd7aa8702b913e32662761790afeadb. 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/QZRP42310899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd027d83f60e4e8603c8b501855013962bd5a26aba97dc90874fddda04ed3d547. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZK6K2493916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6273f36661625387c40f508633405974d03c9b5290ac2666d4e00c5f9f3502d. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/AUGBT2404914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e408f7a093ec76f9fed6d7965be06109a19ab5996992a95f84eab0e49048f0e. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/AUGBT2404917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7f2deb4648112cd2188da66b4067eeb83ffa096691c713c49052824420650d. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/TCAIM2408811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e87631a4403c6eec4d6777735542532bbe1cc36f83c0f6cd1396f2723f85195. 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/AUGBT2404918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed466a35615ee183d6b8eea30e407d165782d9a6fa2656a9b0720eb72bc37b9. 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/QZNWV2486596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3881dae8f1466ad68640efa10277898b8be87b8fed165f1b8d18fe2e00747b. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/AUMEV2517905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aac3316e1c752f8b383396c49963505f83c9bb92df9a7dc1bd7b53fdbd38d5d. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/AUMEV2538252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0799fdac5080635fc8c243bce17505c3e6572d64fb865c0b28320b08939320f5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBSMU0001626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fae88434c5c97783a4556fd576f71e39b324a7da3609a598f82ad26b95466c. 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/QZS632293706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe8de2a012bd99ecbb7286edb5ad4a27238437822c262d47d0a06e0f773e5d6. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEH742225433.