April Smith and the Great Picture Show are an American folk rock/indie pop group from Brooklyn, New York. The group won Best Pop/Rock Song at the 8th Annual Independent Music Awards for their song "Co
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 0x536d9ba633c81cc0ae06b7653f023dd971d00e51fe00ae49f8fcd2d464c2e5e9. 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/e755ca1d-7425-4ad9-9a82-6a6d76b09a4c.json and https://artists.proofprofile.net/proofs/artist/e755ca1d-7425-4ad9-9a82-6a6d76b09a4c.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 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 0x1b4a44dc21f17eb50359d35a21fe3da0761c4ce3c2f2c3b8b721f11177915484. 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/USTCC0926025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacc682e6406e7c2cc2f803c0143ec292ae4c3d20a4b5eef47bf20dbda17aed1. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USTCC0926027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd438075110f451364594cce7fd012a718bc4d186ecdff43c238d3ecc0db1dd8e. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USTCC0926030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4f72dda67c06799c711e008a29f1ff0e5eec404728fdfac389ca39a15372ea. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USTCC0926032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df2679b43bec80d9535c3fcbf646ac5a2e61dafc0099a8cd160b3a464ba1b4d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USTCC0926034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4e1f154ed6b4e27a25289a0a4462fb53bfc9744ce0efbb069bfc26aa76a0a1. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USTCC0926035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2169967792a9a3dab46a97c1e60e8332b0921279df1dbf2922fcd59ad377f2c9. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/USTCC0926037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aedaea5e1e86436f312e8927397402a8ef4de7ce877ea250f00f63700e1664d. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USTCC0926039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f3c079b271ffb37f323386f1a7ce5b2a17c2060cbbc32484bc25455a8deb5f. 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/USTCC0926040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37002ff9c0e31b04e96e30ed4e7c84a80b258b952cf265517906ca256b51a180. 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/USTCC0926041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c2d1e5115e6fd471e5a6d0b587f886f7aea56e71081fec3359c9b707497cc4. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USTCC0926043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1441fec3532554e4b618df51dedd87a7b97de84a2e72660a08c0ffba784626df. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USTCC0926045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b27a110c2193e1971c58359791312b426ca0f2e288a96cf3e84a375591a9353. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USTCC0925806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47261ad9ddd82100c892685d7a894a8fcf7a40f4ff4969fb40842f14dc1f3156. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USTCC0925807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25569a66aca176f193b46d3c79a63f54a2673fb2799fefe1dd52ba6aaaa9c8c. 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/USTCC0925810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca234be5d5d3563a59e48bd2089dc17371d61098169dedfb8a3dd9f7a8630b9e. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/USTCC0925811.