Pyxis is a small and faint constellation in the southern sky. Abbreviated from Pyxis Nautica, its name is Latin for a mariner's compass (contrasting with Circinus, which represents a draftsman's compa
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 0x7850d610ae79356945fdc802bc63378bb245ca7bffddbe804e61c8861f95451c. 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/32e3a69d-229d-4cb2-b9b1-810e85634686.json and https://artists.proofprofile.net/proofs/artist/32e3a69d-229d-4cb2-b9b1-810e85634686.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 0xa64c11db034631290b479d8248383960a8ab0b3dc801f8937dc526b853186799. 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/UK9AA2408501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe893e3abb24e788949484120c0644ae4d004c3e986a4f1dea76fa012bdf5fa1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GB8KE2416822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51167ea6335a954584787a418ce96ad0750674023dedb9148453c38f6ef6a6d7. 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/UK9AA2408002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418c3cfd8ffe0145e3807d31f62c3764ac9a0e0308e2f42d7f1926828f638b25. 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/UKNBR2400122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5778740d252acd2c84c9f672c983605594f339070f64ff4f7b701dc3a714468. 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/NLRD52355250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b75103d8a225060d2d751e760b01ad368059e9d4d1a59ebc4d2cd9010e9651b. 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/NLCK42505434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd44b51e2edfebaaf7db7d50075a72ae14103af95db75ce90acd618c551491af. 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/UKNBR2400190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5615753c0323e9eab7e07469fe32405013781b125615b1f9a28484f581aaa7e. 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/UKNBR2400192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea512521f7c2a81e6aefc2fe6bc545371d124dffce8a6f5d1f5fbbe9f85128ba. 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/UKNBR2400184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5760a09701498bb6b56d25a6214e2d03dae292f52c0105d2aa5de820c3e8b59c. 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/UKNBR2400182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230c17ca4f14ccf13095aae5db1368e0d3244f9a9b635ac1fa8dba09c61ac02f. 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/UKNBR2400189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17e0ad6f332fa3b74f625d8f35289edb09e51dde953f5aa46124ac7d98055fd. 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/UKNBR2400183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46724ada964c2ef9797b2e53e3e5553ee4cafd7172e2e0bd4f2084a919ab52e. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/UKNBR2400188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ed65d61028f0ac674bca30afe9aea59b20c41eeb9425fbc05d63deafc968ae. 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/NLCK42503649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c83b0c0700b92df414816f60eb3f909cb29f7174a739f29eff2e7610782dfb. 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/NL3M12412444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ff6117043dc50e5090483190f69064e2ee0b7115834611cc0f3b69f297dc9f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CA5KR2503857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5367025dca979de885b11de80b722210cee2473ab967d4ef79bb46f34ea5ecb1. 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/CA5KR2503858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef70395ce199bec54874fcfd854d040be23c082f85691784a38c0007342890f5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CA5KR2503859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf2bc31a1cea3594511d68b6bdf5db37a2ec316f7383f6993a60d9e3795510b. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/CA5KR2503856.
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 0x3ea5fc183557a3ea685461e1fd18a1b193adf7c85a6be147870b179e9b0635f5. 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/CA5KR2504193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67232158fe2ec13846efc4ea38772770889fcfbc4822b69578fc858331f8e62. 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/NLCK42415144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7941b6b1a4812214d3d28a81434dc23c47d5f5e9a59d1ced79c40766165d3e40. 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/UKBV42400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3851d8b3fd17b3a98414682c0213a2a3a18bcf8f8d321103824cb760b6e41988. 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/NLCK42413685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a3ed1a1bfca638d3c44a4d39b8c10020e88092e1dbcd7a7703f7dca22b404a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLRD52355169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44986ae32cada1dea4f10ee5b434b63b2588f9531b06b88e0bd21e09a05d32cc. 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/NLRD52413788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c069f91d62a662cd70621f5c0532a1ec95b894fb762c657ec1b11bb32c0d44. 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/NLRD52413898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655c5ca881352b2ac42aad14828279beb134c9f9308e3288a82a73148501c9e0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GB2LD2410354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc735def578bf22abf2e40d6e739eef3c753f9eccccc0fad214b945f3ffcc5b3. 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/GBCEQ2400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9c5db7207b75edf516f8911f80878508fb2b0e3a617fab50c11e0254974563. 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/GBKQU2427336.