thumb|A drifting thermal blanket photographed in 1998 during STS-88 Space debris (also known as space junk, space pollution, space waste, space trash, space garbage, or cosmic debris) are defunct hum
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 0x486cee7f944ae2b5ff57048c70e01b58171dc7a208861ffd20699c7ffe86a858. Chain 2 (Bitcoin): anchored in block 953959 (2026-06-16T14:51:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/279cac8f-64fe-44ef-a0ae-a936a6ec8647.json and https://artists.proofprofile.net/proofs/artist/279cac8f-64fe-44ef-a0ae-a936a6ec8647.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Space Rock: an Interstellar Traveler's Guide
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 0x4c4db3bdb28eee8783286d669b61a64eb9155bf63dc2cda27229b755b2bd9f9b. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QM6XS1602674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee808d290bb232d3aafb8a110dc9df08fbd77bb6ba30e6a45ae8403ae524cd7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USA560807210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1442b6b7ac910288252e19bb5e223e10d0abd9b5a6c7042a908501d7068d7a. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QM6XS1602675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36262a4efd4e040b17d9953d4c85325ac4d20f06b3c6abbf4df997cea4f2ebb8. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QM6XS1476091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27dbf9f2502baca096c6bfbfc59b43d5e9d208eb9f58e773fa0d816cdd96c22. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QM6XS1602676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f96f5f4ff3618c73b6d332dfa5a129601198b0d46a4ba0226e9c34c7706fd2. 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/QM6XS1602649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade3c9b8d82ec4a2c88d0d7a1d8b6e5fd3292b653aeab9775418d244ad36d65a. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QM6XS1602650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5543aa90c8af92494420ac9aba97c3da46da7c2fb51e1a6acb35d985befd11. 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/USA561426670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5751cc8b6707a115a4c86f331bf5f91f110fa957e0c0c3d4903c01123652def0. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/QM6XS1602651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c256d318ec4207743531fe65c02f4b96b8e55904517e84d4e5c5239da83dd19. 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/QM6XS1602680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c5895766fc474aa8bf556e49745388d782f65b5a8713ec0ac902a58984ce7a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QM6XS1602652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94735073d3b95b7e80a764df8a37409a7dadc165f36bbd109fc06268914bab3a. 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/QM6XS1602653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8984e442cb82b71603ca02b8209d4c256e952162a1f5f3b939080f628cbb13. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QM6XS1602654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15544fe3fbe585fa854e22a29f9cade3eb6ece1239b07a82bbad28645cffd5e7. 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/USA370575271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87aab8be5672b57c9f8c54382697017072e88e50a5899a625d1de81eb6f367c. 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/QM6XS1601537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf480fe76d5eca9cdbd96753ed7885187b57570087a776afe60650cc77576f5d5. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QM6XS1602657.
Fohat Digs Holes in Space - Live Paris 1972
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d20ec15d17db2d76254c1035d0aad0911eca810e7bca6e75a28cc84b12e670c. 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/QM6XS1602658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb781696f9d9ceb14f314ee560f68d4d08bbcbb3306052cee3ac4111564c9e97c. 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/USA370918949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b198ba92a31e306667df77218614aeb40755fc6d671835e0ab8d1786a4b06b. 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/USA371022938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d91940bf65dc77cdb4ec5dfa69366fabeb03a5d345fc35ac730737de28286f. 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/QM6XS1602659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab57606ee67c096fc3073a7ceaf776b3304e8511168ed6a41434d454829ec538. 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/QM6XS1602660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331f4af1e83cbd8be342428d00171a68d9cba5ede08389dc1493e4699a648efe. 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/QM6XS1602661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3defc69aed642f56118739b2d1bd0cd5b183982b20272c0de7a2e75e8de007. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QM6XS1601937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f6e0b862ccbe97e2de0088178eba3d741c3bbc22fda22b78fa21a2acc0c969. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USA370616839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14dcac168cfa25fdf8913c42a26050247ea5dd3b97f1818f4bc587c9d3f2dc3e. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QM6XS1602662.
Shadows of War (A. Rain of Destruction / B. B1 to London)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d7d0935c745ce68aa6327996ce9eedbf6cc30ebd2c8ddc8fa633d45792b07f. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QM6XS1602663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085462b16877519027a9c1771d18ec4101d08f531c5000b25cc91702a448f804. 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/QM6XS1602664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d007105b1174bd8f92f989db9f2ae271ab1117e8801e85a953397f8fa94b30c. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QM6XS1602665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e8b2cab9009090c8cf6a336a752a1939c08ad94e434e2a0ce90c6fcec64ff5. 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/QM6XS1602666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6ad8f77cc5479325a105c1d87a2f7f2d0d2d2c8b749e867137f4ff3f1de4d4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA371417450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e7084f8e6e702ead4b09907abbcfd611c8acab36d21eeb363e3fcab6bce150. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QM6XS1602667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f55b3bd79f8cde3eff081fac2c45a3483236e8d29bbcdb30114665abcd603d. 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/QM6XS1602668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6412c53ec7c60bca5f8a903c47a63a1144f1cd7e1ab7e54e87c8e31662a1ee. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QM6XS1574729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2899a75487e1b4c85fc6757c0bf96299a497596c35e763775168c648cf42fde4. 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/QM6XS1602671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6171092d8365381a3edc390f9961359013bfd72b73a42c26b2d58db2c8924f34. 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/DEL212309532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59beb47283a3b55d84fce30abe633542f9092e6bfcb8af668e2e84ad59f44dd7. 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/DEL211700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a801128ac0de7c4ae1974c207592cfbde7d0f8651e4eb17ba4f21232fdef18. 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/DEL211700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8958c6ac15b907b610c12e55ab230e3a7cf06529806cf89823bed0493e3409. 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/DEL211700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe73cc97ee4a692546e3ac8b5efbfe95b56bc18ef0ef8100e70ba30bfcfc248. 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/DEL211700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767f869ef63d686a5c8edcc9bc8744c014097ead36ae6201603d11628a8fb6f2. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/DEL212000965.