thumb|Ax and the Hatchetmen in 2025 Ax and the Hatchetmen are an American alternative/indie rock band formed in Chicago in 2018. Members of the group include Axel Ellis (lead vocals and guitar), Salva
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 0x7c68d295b800da4b9b036505336058003220fab5e7ca5e359ebef0cb6a2ea089. 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/e542cb96-4eb0-4410-a227-b9199c2cd176.json and https://artists.proofprofile.net/proofs/artist/e542cb96-4eb0-4410-a227-b9199c2cd176.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 0xae28f1935f0661a77513a43c1ed903be27984574d9b056031927247800a79aab. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/USHM91998783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb6ffcb9649c14ff4e767071833cb440ab375184b6b4411d262b7465074f6b8. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/UK6KW2000214.
Where TF Did I Park My Car - Audiotree Live version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1364a2beb85faa4cad204671a3f2094b1130b4fe5f7a9a5506cf181d21605e3b. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QM99V2303402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1364a2beb85faa4cad204671a3f2094b1130b4fe5f7a9a5506cf181d21605e3b. Chain 2 (Bitcoin): anchored in block 957681 (2026-07-12T09:09:02Z), 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/QM99V2303402.
Existential Crisis Pt. 1 - Audiotree Live version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf59e859a5ea20981e93e1224bcbc8ea96875ce71179dabbccaa543ef33ba4c. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QM99V2303403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b94933ee9601a3a8bf0e51b3d8ae564d213d37cfaaea17941684ec987166c8. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:06:28Z), 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/QM99V2303404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729e0279a8810394b8e468133ad192c31f0454f7aad0f345ecede3f64c18eae1. 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/QM99V2303407.
Where tf Did I Park My Car (Extended Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8455756499bc017c6e275f712f4f3ed91150671bceffd870771ad638654bd147. 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/USAR12400015.
Flagstaff (Live From The Mercury Lounge)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc57d191d299e1f853b8fd8a25d02a0232f3c8fb5b9c2af388ef4b32832b02c. 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/USAR12400263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98a2bcaa6fdd56ac016037f157c07f361eaf3a86569984d440e9aed3e362522. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/USAR12400182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8455756499bc017c6e275f712f4f3ed91150671bceffd870771ad638654bd147. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USAR12400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b66212804b24face872bc9172e7d3b3605bee07c623b6c6d541bbf1c500dae7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:07:59Z), 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/USAR12400415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a63a0e15ae3f83d9271f1041a3a18031b419e725f3edd0182c5892cbcbe881. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/USAR12400203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0b1c42f4cc13ee97b19a9617e9b57cf66ea5b3e245252ccfbb93855733db76. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:15:38Z), 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/USAR12400440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d2f6a7f29ffe6029e27f50032844990234165ca57a2b4f98bdfff5210720fb. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/USAV72500058.