Sub-Radio is an American indie pop band based in Washington, D.C. Their sound has been described as "infectious, bright pop," "gorgeous vocal harmony," and “tailor-made for festival sing-alongs.” The
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 0x99aa80ad3c13a887f50f4407e0fa1e98bed083bf14c7cc885690946a7c9027aa. 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/8267e04f-1429-4740-9048-5e3d69d00cd3.json and https://artists.proofprofile.net/proofs/artist/8267e04f-1429-4740-9048-5e3d69d00cd3.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 0x4763fd8b8ae7f33e7be043274e017ff4184e990787c9af47132d3913133dfdeb. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/USCGH1697104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabf4a7b7612b7719adef5391e72a14382e579614acd6fe355dba19c0d8393bc. 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/USCGH1697107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9699e501b08710c19b5db96e4ffb9ecff537d61979c2d7c1a4ae07182cf954c0. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USCGH1697108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8023ef47016aab66208efa2868f5cda2575edb5884600bcd647d418f5802ce56. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USCGH1697109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc874ab7ddd956809f66f238c8bf1550712e5860059517c39e80fec9e736656ea. 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/USCGH1697110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cbd6b1a6e3952f458a32b014c1376f94fb617fab203a0603f81d9b8dd9dc926. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USCGH1697111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399cf81e99f29e8795c146c516b392592d60c23a864a7540c0699eb4c7dad405. 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/USCGH1697112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77880b65ed317d5937109249029f5586692b4f70373b5d00657fbd6536198c5f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USCGH1697113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f8c6c37bc33b42f461f305e0eba57279a5114b503b3e65f1963150058c877f. 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/USDY41718927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7249f275b7166e6d5bdb6e100c2f5799ecf8e99f6be7d5d44b7cc943be6b2de9. 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/USDY41754911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dea6acfb5f7c8805f4b3bba6a572077156bd75c50fc62df006547d88226dd4c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USHM21718746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b3470d10b35503c79aac023c9e8753e2ad25e9f4cab017f1683a0b475c0662. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USHM81737148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5fe09c79016b11a15d7ff5ccfa3c03279cefe345ece120ecc1f22986fd3242. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/USCGJ1899350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c0a53ca1e67786e1490902eb5aea8508818ff5ba13c9ae2a497680b2a6dc17. 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/USCGJ1899352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ec82e74307c8f8cc43992d0893bf45dbd6cf40b67e8b45a17aaef5259d209f. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:09:00Z), 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/USCGJ1899354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056f614348c3f45a83cc6603acd1880fd2e1061c688e197157b4bb85ba09124c. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/USDY41997719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761899c9d341741228d3dad5c3ea8b9f850cdd642b5e443c0b2d96934cdf92bd. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/USDY41997720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432fb2e4987c213276f57e7e224c278a160879bf635477b99645041a2bbda213. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:03:33Z), 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/QZ93L2003054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb789483f63e583e905a08ef168d6f197ad23773b9791adf0b8c08a689590d7bf. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZ93L2015028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e162091fd2747747e9fcefe3d6705ff4fb8b2acce9c1403a60739de8574bb0a. 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/QZ93L2027945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf570dc04e165937c644fab96fb7ca556c638910665c8211ae0dd1853db32737c. 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/QZ93L2028459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2e26852bbe2e6d57b16e8f7849363ae6cf20481938597a74b4ddce734b4c30. 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/QMFME2204083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78f8e84c2af3d859f7fd367d18eda29a77f799ee283ba3aebca52037d11f94f. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:46:55Z), 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/GBKPL2203214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a5b62e2fa8b9d1780590c79c42ae691a30b3a22294c49ba17fde4b27c5d8d7. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:54:26Z), 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/GBKPL2214933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e84e5a24948148fcd3336d9b5cc45e254330b2f6a2a9a0941980a10c0b8c453. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:06:32Z), 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/QMDA72213494.
1990something - Live At Spacebomb Studios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d0eb488ae538f19237e80b9a0f59d89673f29f8047db6a8e0de44bbfe3cddd. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/NLRD52350318.
Everything I Had - Live At Spacebomb Studios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c183cfc4eb8a4444137413ca070df8b8a20a2b40a73959fe689f91335159b90. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/NLRD52350319.
Wait A Minute - Live At Spacebomb Studios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2debf28c4bb4a6c02daeb6cc6c38697dd284b5ef34613c8614a5927b2a4659ef. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/NLRD52350320.
Waste Your Time - Live At Spacebomb Studios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271b73c3f6d40071491dbcdc603f7ef23909fbaafd744c14be179cebfeef7c4e. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/NLRD52350321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a31811328591177f38fd50d2c1ed53027dfd96096cd8523e32f9ad2af059f86. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NLRD52350322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfccd3ce3726e01fa5c17c6830bd92533cad52a119bafb5733cfd3e3848d910c9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NLRD52350480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfccd3ce3726e01fa5c17c6830bd92533cad52a119bafb5733cfd3e3848d910c9. 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/NLRD52350480.