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 0x4ec640f1d299923bdac668ff5382fbf1badc670cee5792b1f308a74f13ec1d8a. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c047b7e4-d1c5-41f6-9aa0-3e3eb19482cd.json and https://artists.proofprofile.net/proofs/artist/c047b7e4-d1c5-41f6-9aa0-3e3eb19482cd.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 0x8b1fab35db0d1c796dd3a7b9ca570e9f4794bfd599c65f593c69a4b99d0b6a24. 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/QM6XS1601965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c6a4b48dab207548eb7a815c55f836ca60f52423c9297d75743dfbd5ccfd0f. 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/QM6XS1601994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e9161b0b750fcf60dad71c53c259f86f1bdcf04795dc4230d1cf460fb9a1c5. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-21T17:22:31Z), 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/QM6XS1601966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd7499dd654878ecb3b58f99dfeb29561e24ce1920dd1e782918c71f83d55f4. 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/QM6XS1601967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f33ac2213447a7d422faf29034a7da734333b2353031dcaddf359745a484e72. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM6XS1601996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0687c2bb5bd3fdff253f88188b7ea6e5bd24b50937a97db59717210ef5df37. 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/QM6XS1601998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e69f847c3f7886daf1f4549f725cacdb17d805731aacbe44c9fc558bb1f488a. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QM6XS1601969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b689c4ce426998991fd0fae90139dcc7301d8199f0e4bb6b78035aaa623c932. 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/QM6XS1601999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27f23e06e304ffd3ccbe08f6bfac179a93f23aa7f7a3d7681676549d757aad6. 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/QM6XS1601970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a335b82ab8133b7fad68311ea9a4adba51727d9b24190dfd8b2a379549f564. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/QM6XS1601971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf980f6a253149ff18c4152d8cb58f40951a5b6dc39c73bd710b3b8a9a052b2e6. 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/QM6XS1601972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7526b47b8f8acd9ed1e305b47ecef7667dd5a8ef454cd7bdfb79e6a4c95cc0d. 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/QM6XS1602004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b25df92d22511c717002864be5c8efe0813b0c0c0037137b58727855fb1577. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QM6XS1601973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6189d2e72be117512e495473cae5dc926efd7eb2a4c3a9bf4cdbacbbc72c6b. 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/QM6XS1602005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea6b7b665a233d179e44b972e422bac3ffd08bbcd171f05f7e3cea9549a2918. 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/QM6XS1601977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0ac208b1a6515695ee0180c9e35b377d37ec8310fc35e3a0a6bad1ec7f4534. 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/QM6XS1601982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816e0c8620e04277d38b1fbbff24e0b6dc4fd57df9361cd091eaa0fbcf729296. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM6XS1601983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f31c997327dc5e41afb1c59b45cc8edc404814a1d8824f83c572d4a615d1a2. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-21T17:36:12Z), 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/QM6XS1601985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbb1a23709e2b89e564c7e40b3b539d1f7cf2597d0cc5a61061b00e69d3a292. 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/QM6XS1601987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0757d775519a3d5d34fad7225daa1aa59388c589342093f83700c0e8e313f58a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM6XS1601989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cb635a7ea59b877b83938199c98b37519483c22fe79147e7b444d16769897f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM6XS1601990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0f0ea9f5b16ad0d918492e48d88439973f8ca7b1e507b894d39d60da9ec054. 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/QM6XS1601993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2d8d383b824714e32e60ecdefe07ca48b4ca67a48e12720cf878da73025167. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBMA21838567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418b575b1076b7c4a99466e2260c75d8ed05377efec4801c1458d476c934ed8c. 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/GBMA21838208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f2474370db155ddce19b4a5e34ebafc9149fbeefdce43aa7b30cb652134727. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USY252309718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0421170cf487f412ab98356264d732865e4f6146c114bf20bda7154247f51d75. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBMA22052351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6bdfad87babf5414c9323dfdb9592c942acdd2027343a6c9d4dfe30bebe694f. 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/GBMA22056549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e6b4caf9f39205441a93eb525f568cb04c0c875abee8d93d8db709ab5573ac. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GBMA22056546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a2c6aea5b429f0274343afa1d8398d495cf3e06c671ddc0815118b5b504356. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-21T17:21:55Z), 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/QM4TW1742397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c2fbe1801cae46bee7515721a7f9fccae264403a92929134418f3e9c9f60be. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QM4TW1742395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab921cf3d92e8f41dcf5c81846cf34352f1e1f33433ff822e5f7ecdd7f4c4f3. 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/QMFMF1525587.
Last Trip: From the Superclusters to Earth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d23887f82587a73079768db60e452a5515c5974a2e711aed01cb8fa78f33fe. 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/QMFMF1525588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c479ccca48fbf5211bc3b1406a53698df40ffddb3c3c4a8517c8a3bef596678. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QMFMF1525589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f2474370db155ddce19b4a5e34ebafc9149fbeefdce43aa7b30cb652134727. 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/USY252309718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0421170cf487f412ab98356264d732865e4f6146c114bf20bda7154247f51d75. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBMA22052351.
Tales from a Space Cavern (Split w-Owain)