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 0x9d6ee172d49c00fae45c07d94097a9555e30f8bec6272551cdbb140cbc28ad7f. 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/f45cf07a-9c96-4101-a5a4-7e44bd122406.json and https://artists.proofprofile.net/proofs/artist/f45cf07a-9c96-4101-a5a4-7e44bd122406.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 0x6ba242146511485837dca1c2a74727f55f4e48dde5a97ff26b436a5a9f235eee. 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/ESA011964110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67cbc90869565e501924cb837f2403cb1b98820e1e31b0e99b9a5dda78699bfa. 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/ESA011802803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd102a38ff28fde749f3687208cbdbff86df54d09c5f602abe7b40db144dbaa9c. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:52:34Z), 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/ESA011802810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f71ab495d93ce804e5ff141c82e57fbf60d3e00af17f66066c0fb55a3be7220. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/ESA011802819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e82db6a73810d952aff7e15e2854dc26d9954defba88036698aac85d98f5a9f. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/ESA011817136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f7c668d6acf71c7342038e7e5cd37ace0a31a0ebd859c6769a70e05cb7e147. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ESA011817138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43e8b9c0195db1ed437c08be02ebc9c9975269af5ec5e1754ba98b2b079e2ba. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ESA011824740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2229ada3ad179a009a0cfab27f3ce7b94ff6abc0df9a0bcc863e37ab87d02cb. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/ESA011917127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec6e961416cfc525fb6796c8ae087a2b5262c701655d975d2e8fa9069765f20. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/ESA011921868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7372d603f0ee154b92c96c47e37ef3c53e7113f99ebbc09b1753b040bf9c53c2. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/ESA011921870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f43699b2278cd957f088a8983845f96259541fd8ec30c02044162f5f8d0790d. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T13:14:47Z), 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/ESA011921873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6083627dc229cf15ff3a3915b2495a26315d387bb9a576dc697c4556a9ed5db5. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:55:08Z), 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/ESA011921877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee77bee10a9c1ef7039fd352c1e094e02752e63b309181273caa1da8a1383fd. 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/ESA011921878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4077c25025d69e41700585e7ed65d410819df9a2722d06ec44938da53db21b8c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ESA011921879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4311f72071053d695aa4f97588b0661a85c3327cdedfb5ca3ad2780b67c5987e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:09:19Z), 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/ESA011921888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5dbbc48fdd3b64035633d75d7b6d3702fb7564d3fabaab316a6de59fcab65b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ESA011921891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfb97aac70ba6500f26a344a419ec0c024bebc5c2c7b9e82ae4527b350e0a40. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ESA011921892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4826ec942cd855f873755e628dde3cf9aeb6682942c7e6644615efd3bd4433. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ESA011921848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab319044c6179d059b1d6d877692dfcea78f3cd51647088610b8e7edeb4fad46. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ESA011921850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d3c50b5b2ea9cf21fce3f6ac526da3be23093026c8b030464fc2ef70ecc2d0. 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/ESA011921852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68b62b641397b1a7a180f820065ea77c09524518992fe2df5e93919f4e79198. 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/ESA011921853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d786c9161179517bff2ba549e9ead9e4445a25310527cc24dc78fa2c5a57f38. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:00:58Z), 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/ESA011964381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260138643e969721ed3a230135b2662b6f703c226701771bd3c797bf9e3c0604. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/ESA011964383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae17a5fa72c9951fb81af7a9bcda2fac536d71f23cb00758693b44a9273e272a. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ESA011964384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d67de9e595a849e03e84983b309740282f2e85ad4b40f1d22e843890c9ba96. 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/ESA011964386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e082b1e41d54dad82ad6717aa0bb18020a08bae716d59e557a05a4ccc2633f0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ESA011964387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46eb18a09adf3587e99e4d83018633788069c02e54e3132b11060f61288b29a3. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/ESA011964388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbca3b2151cbb46b85c207eba8355f2da3ad12488b81362da8db7cf873c95f71. 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/ESA011964389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1823f4d4ca43f0cc21c9bd44851946fe5b59ce174c4ac4023be095194ada6d2. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:26:10Z), 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/ESA011964391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccea90054590b6974aaf39ea0647a0dcb151c35945ac8707113a88e69cc57f6b. 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/ESA011964392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c270822a8c9bcea74b9a0b1dd10916296f5138b90a54779bbccee724ca65c32. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/ESA011964393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd491efe48324dc57dd3a8e03ce5bdb59993b812552fb832e01907d9b6fc5a1e3. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ESA011964396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80140b247c70fe5b89d0826fdf140cbd6525069ea5fb2b5af7c48398628be8bf. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/ESA011964397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f76d25d594ce8808b8842c422eff639dd58da6c5a1e4b3c416a24a818abe1c. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/ESA011964399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0dc2f27e958306d8ae37fc6d5431001234337bcbc9ca05c2cd4c558a6ee64c9. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/ESA011964083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f784a17d8516480e99a6cf817bbbdd3b7cbf43a135883122b9148470396bec. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/ESA011964390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965bdbe7884c587a29349ef984a4925932a2e5627be7c8355e2106dbae8e621f. 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/ESA012043673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6688ba00d86e7918f26a2720845b36d0342eb764d157f88e2bbd8c16ae88ae0d. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZ5AB1984108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad5a4d1bf85c59bc65dadcd9591a992243cf668f2e2e000650d17157887df84. 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/USDHM1617156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b50ab2bc59a15d7382efa52f5c2d7d8704912945f15a30656d1b6b632c939de. 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/FR2X42060311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb930d06453f8f412fe3b085a2ce9d718810614667f303d028dce5a39060babf. 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/QZ5AB2358598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9470ab42e5cd46f4c0855e3d858f4dfdec4f8226745537f6de9cfbf73a34786. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USDHM1617153.
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 0x233337b6f8ee1cf287af70a557d0095eaeb41bea772a547518e050c38a8c41a1. 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/ES69S1500284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9194a54c9713614c89082e6b794b961e9e256b585b2ecfa9ea2854063ae2bd6. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/ESA011821424.