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 0xdbcd90a2f860cc040c9ab368c2bfbbc8d50c77b1bd1eade9a6eb4d22f488e09a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64953a5a-5bc2-470a-97ea-4b06c307c04a.json and https://artists.proofprofile.net/proofs/artist/64953a5a-5bc2-470a-97ea-4b06c307c04a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
White Noise and Waves for Baby Sleep, Pt. 3
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 0x036fcdc6d0f470cb6744e029299b32efe811a04cb411e9744958910fb813ab71. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/QZPJ32107303.
White Noise and Waves for Baby Sleep, Pt. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1ba46b7302389bf7df05cd2c182a84b17f4d7a5713d7265148015f71ac939c. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/QZPJ32107305.
White Noise and Waves for Baby Sleep, Pt. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bdadad7fd6feba46beb2717ae275775e578f4bf032a35da55451f83d14f9221. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/QZPJ32107306.
White Noise and Waves for Baby Sleep, Pt. 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f541acd7fd8fd56abdb9fce04fddce4cde4643890d593d56d038a210e9347c. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/QZPJ32107307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2507974c9097121b50cbbcdbdd48743a75aa77f432e69f95cf528e880a378e. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZPJ32106980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46746778ae1addacb6d32261636568424feab8d72eae18df1a9f26d11a9522c1. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZPJ32106981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a1ad00c6c9a84299bd14708a6c792a12cc55daa15b883614726e417d47c155. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:20:24Z), 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/QZPJ32106982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1731191c5d0da627b2590cf9db9d8da241e03890ac36e007fde3ba96daa14fae. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZPJ32106985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48febd38455b9fe01508016cdc5495b0268ae0d46881dbf3eeaff9c94dc38fd4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZPJ32106987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7021b101949a4962219a08b84474c0020aa9d1dd68121ca6f982b38ba152a1c3. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T08:02:21Z), 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/QZPJ32106988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d94ea8b185141010ecb55f2d3eb7f59155ac5cf2a943a16828f4866deb9b3d8. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:09:30Z), 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/QZPJ32106990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c554bd07f3aa8ef0e0dccfb02d36a6d5930a3277f75ddcefe4ccea1f28846ef. 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/AUGBT2213555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6f15b0654d8a9beef6e42a5d997aa484d618c42a83b696da4a56acd802d7dc. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:37:01Z), 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/AUGBT2213556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc00b7c70f649ea06a58539ac7a84c0cc7422abf172fd7a3ffce2023cd7f7534. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZPJ32210100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6cb0d1ff04de3481b9528eefb29dff5dbbfa5693e3afad34b330c39a07850f. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:44:16Z), 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/QZPJ32210101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02da08d9dad7c659831fe5a46a9b8d6bbce601a9733129cfbf9e3e642b9d6223. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZPJ32210102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c69994a1f4fa8c4f21709781a9fa3ea00c8e7bdce3bd0ee8fbf076f5223acf. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/QZPJ32210103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba1d64ef2a5d49c1598af8067cf9940597e4109d28cffc7924249233309c395. 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/QZPJ32210104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582c1be70764cbc870c7230954d05278ea0e3ffeaa6cbc4c77cdb5c6575a36b6. 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/QZPJ32210105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2208aad196f84de6780ba01268fa21fccf21e394f88f781e6ffad93ef36539b9. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZPJ32210106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10745ca64bb76421bb19fa74f58cb44a86e7aa253cff3b207ab67390a5b924f4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZPJ32210107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87954c78a04c6ff1a608885f18b8c95f972b4423bb60b465c388953df1d9c6de. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/QZPJ32210108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3a27388476684bd22e962c58a10756ca050b68e988a8a308d22a76bcf7de74. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZPJ32210109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998b54c75667bccae97fe5a2464c4d97c0e37c6a25987196860cef90b63a9503. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZPJ32210110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef234bab287f25ec0ac598ee3745e291b9b4f1a7714bb703a57a0132790cbb80. 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/QZPJ32210111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc464462292877f03650debddc2674928b660c431b8094aa532b1a22825584295. 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/QZPJ32210112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d7e621a8951d6c84575ede300a74d42023589ecf7b564d76c1e96165d743e4. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZPJ32210113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a084fe585bc3f777e487426f2c7ebdf93dbd6ae5ff2027a986367aa4b4b7b6. 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/QZPJ32210114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00bc90d0990a9dd1d7194857f2579bdc89fd84c15f06955aa2dcd048bce7dcb. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZPJ32210115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc3b7c0c84206d65f8742c410730a9611987a14cd023615da29eebf759ee210. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZPJ32210117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab18dc13dfc691c6ec8d34dfb96427e9084f58d9805927d189a1acfb455e776f. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZPJ32210118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba16f964a9ec962b3dfe155b6b4d0b140915a22f298fcd1d46262f7eef487e5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:13:42Z), 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/QZPJ32210119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518fc36a0846ea81b1539856a994868460b4f1aec692133a01dadbf3577f1f81. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZPJ32210120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7184315d645cd99ecfd497b800ac25c7925481fb4940f495bd7c4dc6ace686. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZPJ32210121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93158fb68d68ae4de436da3fd9ae2018c476a67e827e5be3c2440f84dc00dd57. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZPJ32210122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394f0a8fec36df95822fb42b950dd1bc6f9a3adb1fbbd7eba33f8619cce0cad2. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZPJ32210123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e10a982546ff88a69952d8f4e92f92e68e7631f8e34de541019aeb87f5e17e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/AUGBT2325511.