Toes are the digits of the foot of a tetrapod. Animal species such as cats that walk on their toes are described as being digitigrade. Humans, and other animals that walk on the soles of their feet, a
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 0xff487b33b62e9537481dedb60b24da8ccd2c6f57c21786712ef2b26ac31c5c86. 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/8e31c4ec-972b-417f-ad2b-590427969d3b.json and https://artists.proofprofile.net/proofs/artist/8e31c4ec-972b-417f-ad2b-590427969d3b.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 0x64e96e6ca5629a3b9ca4e51e8f6beea624102a2ccc52a758e88d521fe8b26fb8. 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/JPZ921205330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6679f1745fa3178707792a30c85e5706baa9c551a16b5cb9f733b8bc23883425. 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/JPZ921205331.
the book about my idle plot on a vague anxiety
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f18d44e54f01404719fcc094fbfcb1a9833f953a5cc854caf264dffa45476d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPZ921205321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05a1bee2284d4dc95d40ebfd32281a7d4b5684c6d1d0553aec6ddcbd2197895. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPZ921205322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d31d4d1e69faf00531bac3e2775e931b393b41494b4a0d8e4560b35aa7b5dd8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPZ921205323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe32d911ec57e3cb5400d6ffa5f44c708e17c49072483576ea9df72170928f4c. 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/JPZ921205324.
The Book About My Idle Plot On A Vague Anxiety
Premonition (Beginning Of A Desert Of Human)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43954f5319ab35bd45faab20794e3113630ffe0cf9b6c14c08f4fe238c31b42. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/JPZ921507297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f254cdd6f3cdaf06885583d76b1ae39c611278be1f898b6575921d563348d30. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPZ921507302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe22491a329849fe3eb5389b18147af00bce63b49194ffb28e69ccb7107080f. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/JPZ921507304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ec2ba6e1aa156cfe50aec67734673ce6db1d8036b52a22ded0e6b7d2c333ec. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/JPZ921507305.
G.O.O.D.L.U.C.K feat. U-zhaan / Kumi Maya Ayaya
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03e3b932f32cad6f041c0d24fe2ba1fceb6c376022f330866a8ca546fdf3cee. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPZ921507306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe22491a329849fe3eb5389b18147af00bce63b49194ffb28e69ccb7107080f. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:47:43Z), 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/JPZ921507304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03e3b932f32cad6f041c0d24fe2ba1fceb6c376022f330866a8ca546fdf3cee. 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/JPZ921507306.
That's Another Story_Less Track Version for Digital Delivery
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84a3d29c34dc62a2e421e9c65faf8a5750f1af32b11e5180e29d43e9257f65d. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/JPZ921713858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5920ef33a4dcc39ae0c6c6bdb6b06c13327df3d0608bdfcc3e93ce6d2860e0d9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/JPZ921713853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fba3691307057e25464cb2eeebb3b172769ef61da6cab8c4529c41628f0152. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/JPZ921713854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa5a1aaedb4df57c9f218e0a33e0cb7b70db5b29d872174610d9c6121c3ffad. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/JPZ921713855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa101813d050fbc7eab4cab0a801af5e3de6a2e03e1489d8c0d945db138cb3b76. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/JPZ921713857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc720d71414f3b6d1a123723904db97f676e88fbf94505a821c3c339a3c0b5b3. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/JPZ921808291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf427ae1ef39b4843f27741878c4169c2c2b1e988dd4e30c167fa8ab054e4bb6b. 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/USEZ62123307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3975532bdb5205bcf59bb369c56364817532dd11c7d0b285cb585593316d6f5a. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/TCJPV2308345.
I Am Shark: Confessions Under Water, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1753d3a4378d7028fbc01714f12609c7900d2a016061119abb40c64a31a0859. 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/USHM81444398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5520062e81308195f00804c1693447d1408a6ecf0c58d751c996c1ecf867b7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPJ902013930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1314b9dbdd4c584456063e430b50559afae0bcaa1b6043a735b26f9410e0299. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWIE12400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52a531cc0cf7d164348f8ec90fc0f16fe7def3ef747da01259adca88dc5ab88. 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/JPVI01035580.