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 0x0d72a7f27c0e7b7f21890385e7e6d7479531627818de99d76cd3463bef8667ae. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e16d43bc-39fc-4420-bdfd-1b6e05099157.json and https://artists.proofprofile.net/proofs/artist/e16d43bc-39fc-4420-bdfd-1b6e05099157.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 0xef8d85c85774b5c8cfa6a16edbcdc0a9ff01863f450b193e6deb95b8459fa056. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/CAM460604427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b792cdda9aca4666cfb58a366c4da48cafc986072d749167c5507655d2cad3. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:02:09Z), 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/CAM460430920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ce4971acdd2c6a7ab6d4a49a679ca36bb0ac7d2ab8a6d54a37452227367e06. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/CAM460602798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b132e0813f4fb456d5ebf48b4737f21f0445c30bd33f333db2a556f6db804b8. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/CAM460431205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f3a0d57b25e7ac236370aa2b47901eb0360a33bd7f9d12ee3e393c03bb1099. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/CAM460431136.
Praise Him, Praise Him All Ye Little Children
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b740a5268f834c0e059bfbca4b5fd379f11e04dd9c6cd87588e61e91458a44. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/CAM460430917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dea50222fd084cbeef8c0a888a0e5fe940bfd589f043da1e421a2d2273b5ea5. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/CAM460431132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbab3833b386100e9938b86afd3917063e1950bc37b92c739419888a5d379a6. 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/CAM460431198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8705473684f1e6191e506b46b34a6ef7a8f2b44d3c47ca2871c89e1441a2aa9f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/CAM460430928.
KidzTown Christmas: Santa Claus Is Coming To KidzTown!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0224c469aa8e058720905d0d6666fbb2837217d3a957de21aab08c41156f71. 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/CAM460602783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14327309127a7ab769d9b6aed0b9987eef26864bf742237415bae9db806050f4. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/CAM460602793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac100c813a7157c82dfc2e41b344a50852e182b7c7bc083771c56b6c70eec28. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:40:49Z), 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/CAM460604440.
KidzTown: 50 Favorites From Around The Town
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf661c2a92a88f34aaaad24ff05f2a623d87fde3c3e59b5d389a10a275dc28eac. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/CAM460604420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3fdc9db85f0d360f5fafc5d1e41849baaeaa9170545beb5e11d268ff482bec. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CAM460604408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf596cd2a4e0a98d91bdd476c40a2f180014b1fe9b1457d03fe2e037f1b3331. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/CAM460604462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa5d5d84b58f17a48fb47bd80a75445c4b283541ea913ecf22d4dd45fedf886. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/CAM460604464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecbc697e0d8f2c2d6512809db64b89e5cce5e942be8b721113747280e1b8930. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:20:44Z), 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/CAM460604460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62bca10236bc406461dafd2730e1116d330b9c0e8e84d818eaf20c97c3621db8. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/CAM460604407.
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