Heavy Trash is an American rockabilly band based in New York City, formed by Jon Spencer of The Jon Spencer Blues Explosion and Matt Verta-Ray (formerly of New York bands Madder Rose and Speedball Bab
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 0xf5913d442db8339c808ae743bba384b92696c9a164118f07d195e13c4fd897a6. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c59c37f-e331-4d43-901a-b783ef7b1c64.json and https://artists.proofprofile.net/proofs/artist/9c59c37f-e331-4d43-901a-b783ef7b1c64.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 0x4f655b07c49932664322ff180cf5682dd5ab89aab138026a8c82a342777509ab. 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/USFP70924801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978ab706e906d9b4fcabb67b3c1e55f0397914cfc7eb12e638c01eb248d659de. 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/USFP70924802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d94b6ed743b65fd6551c81935f414d6c9a2fe834127726dbfc1cccd5eb51cb8. 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/USFP70924803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed251e48c2b0a15d730d404a3448e80379e4e41fc0b598547b05b4e136a7aa6c. 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/USFP70924804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a1ffc3928ee404442803fc676b4345921a0186f7b1dd64cefdef5cd91c7fad. 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/USFP70924805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb6787cc8e04435bed4463fb5802fa9e44f2189fd11fd6435360e284fff28d3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USFP70924806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8994f6a8436d35441a2f4fd96d883fa523ade3175c7da23764740802750e40. 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/USFP70924807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7bf26c2d5054ea5644d09b6a4e74978e4d7b7d2cf03475d95bd51d846e5464e. 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/USFP70924808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd6c9b86b02a5bb7b868eb8a52170e69c2548bfe088167f0aee90bea33af929. 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/USFP70924811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843fed535c3c7859e1327bfff61911cdcc80a81997e2c0f1d898ce87c61a1e65. 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/USFP70924809.
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 0x867b3934797c5dc1f6b1eaff9ee0b56fed4c22ea30b1dfb3cd70400c9c138976. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/USFP70924810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3cb2ea8e14065bcd8732dae7656721f306481a4e4a679b575b7ecab09df5d7. 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/DKMFA0700506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d654783dd4e7fa515ff52e228dc69ce77c5f06793190cae724c1bee0dca9ca. 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/DKMFA0700501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa908cb9266fba603337d999d7bef822c6214057feec4df41f7911b7349225109. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/DKMFA0700502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a9022a975e68ef35e86589b711000234a52daa9c566ede608312b6c39bc48f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DKMFA0500303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29658d9f4aa9628f79b529411c3a82207c36f4241bedf500dc46c573b0fc2568. 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/DKMFA0500304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc552edaee99ea3ad34f0fff5fba46c7c4c261c26f8534de2583d675ffa3e15. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DKMFA0500308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b324c0cdb22c6b9976ed14b946577f0f09e1aa8a724e7dbec6a91e6c5e6b487. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DKMFA0500301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587baad94401adc92503eddbae4a9aa76b29fba7dffa59910243d619db3e0139. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/DKMFA0500302.