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 0xfc95b932abc29debda866a9f403135c715e847f5fd05372dcbfe6990d17bc122. 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/c168fd7e-5269-4aec-a708-6fa75c38f244.json and https://artists.proofprofile.net/proofs/artist/c168fd7e-5269-4aec-a708-6fa75c38f244.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 0x8ccbc03ec5ce286459daec77c4bfbcc42fbefaa2cc71f7313aa2953a0af5083f. 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/QZPJ32216367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7b5c2db4b7146b7c466cdb9afa1520a37b89900b301478152568c0133524f4. 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/QZPJ32216369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad64e93c0cba6dc685e181cd8a6b36370efa55e607a1c6445532a266e1dbf3d. 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/QZPJ32216366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26b292277d0e2ba303e63a58c7907dbfbc62a664eb705d381f4b73579ec7e14. 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/QZPJ32216368.
We, Observers, Exist - Anthropic Principle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d09e430ffee61bccbe4f6766530fb9f65db90526d0b531f9603e1c88a5139a. 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/QZPJ32216370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259b018b3d1eb153804ac1fc94bf2176bf72e09217981a657ea571c9ffb4581d. 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/QZPJ32216365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71402ee11214200be6efb3a7a189c643f27edda577123a5a85bafee756e89910. 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/QZPJ32217191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64931486bd6eb5d010a3f806c365d97ee40927039a180e2255dd4570e9001ee5. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/QZPJ32217192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb116bacc1038d8d735a332d0717edc2e469c6ca1a0e4d0214b84ad61e6810307. 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/QZPJ32233247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164bcbf65071328ff2c86713cf77d33c1fb50a16c3888470750c6053c332a1c6. 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/QZPJ32216364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9dd2c7c411b2de5d356f3afa756bcb380074d41d288965c9ff65f846a9ee3df. 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/QZPJ32283787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a9b18f6e33a2effb61956020a0dd915fe7af6f81455966416f6e04a3bfedf5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T00:46:07Z), 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/QZPJ32310926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d863466c99a960c54c549eb8b2893e642420aa54e63313becfe87b4dc6684c. 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/QZPJ32217190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe30122c57aaa80d499c57ca6c53b23f24ac0453cee1620e322b8036c85f7162. 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/QZPJ32217189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e68626ac9db31a7d6c021dc5f3b7ea123970b63ced46d230d9f29d6e5baed4a. 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/QZPJ32310227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa477d509009626b3a8137d889818844178aab430394c1d31251eab4ba2afafa1. 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/QZPJ32231551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde9d1e347fc7912af3693a1c3c3330271d9d590d55be5ad2c0cc3717e225a6b. 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/QZPJ32217193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af09641e199d9c46e06baf565b8948cfc1ad353d7837966c4a3442a448c2d9d. 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/QZPJ32229387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9825f8e49b8bcc9163633d6fa8dcbc61f7cfc18535e2e8d72fd306083746dc8c. 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/QZPJ32268885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f53fecd2ce01ca4ee02f1c9699a35960fa156519cf55fe26a8dff088807f80b. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:00:35Z), 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/QZPJ32268316.
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 0xf7c933d60b0188812a6e57f83bc2763fd297f368d1d1030751c47bca7e1b962f. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:29:43Z), 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/QZPJ32325032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddd56606f2e4df9c09386eab0095baddc07d1e826b86d3c6c01b60bce8e7dbe. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:26:56Z), 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/QZPJ32306465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b51d2c6b04f18e5013158398ee4133470244eabfb2ec057d84a19b060dbea7e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZPJ32333692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3614d5244a98938ff805dec452d5cb54c6e831b673f713ff9ee39db4196017b. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZPJ32296461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688562119473acc64f525283cc7f04307c5809b814e4fbad209ad588b55c8f78. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZPJ32310444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5241c7a9c38433bc896e83af8307d5d3303adf7372df817caa72c3b1d10b71a1. 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/QZPJ32308252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4faadd2e418a25177937eda61e4122d1bfea075749122887f17d7f677d7d4953. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QZPJ32265658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8343c4a3e48995c7e567d052ee881f09cb735d2f0d00c57754b1914c5d5be3e8. 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/QZPJ32331394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeed475bc3f8145c205e9041645cec8a21a19d98efe3be06d626c1d8317f1de1. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-21T22:58:27Z), 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/QZPJ32330164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67913d593a80828f6fe7ae5fea5f67cb5b04c316097777fcf3711c0f9b44db54. 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/QZPJ32344094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539e5a92d7643c16b74d41570213f01218e7f195b83a6c312055a486a84ff41b. 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/QZPJ32355315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6dded569874cf1af95a8542c3adfaaad83e80258d39ed129cbac112dd4486f5. 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/QZPJ32355310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364dcac31707689c2617eb29007b737c4b8bb1c3fe6e62e4811aa75ce09ab5f1. 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/QZPJ32226626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75dea1306c6c538e2a845635b0f2d37c14e5ccce614146691458e309f5cf2017. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZPJ32331524.
Stars, like lanterns, softly aglow, Illuminate the path where dreams may grow
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x669f1c151771794ac5eaa1b304e824a0cb7e1d8d4b93d68bfe188e83c27d6921. 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/QZPJ32345451.