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 0xfa08b39f2b33fcc777b0f5d54eea1079474abd39b1bcc08a36a6d60638b90b0a. 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/fd6dfd58-9b86-4337-a6c3-28d97cbb9584.json and https://artists.proofprofile.net/proofs/artist/fd6dfd58-9b86-4337-a6c3-28d97cbb9584.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 0xe4c984015867b730b4bbd47dbaf2fb767d0225c14f1dff1ec3995ba3f6b2e820. 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/QZTB32356821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85157df272e5f7cd9a8ba138ddc0154d402cb1b9ea80ebc452937fdeaf89f9de. 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/CH7812532046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34f039ccfd1f22aaee7f5e77e519f091c1ce9a827d166ab9f04fc95da26683a. 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/CH7812414613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396b2f85684913a9fed5252e1077eccd0982fd664a2ad2a4255b631ad10e8323. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTB72300512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9381d2d65c9fbe0b584316eb7af1289a159fd2a0eedae001973ed35b6732b5dc. 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/CH7812413315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c2be6a844e116ccd00bdc84418905bf6c2ea2e6951f4800974db2d98be5c6e. 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/QZTB82222299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9da49aa14a45c5efeb66d59ad04a2bfe5e4d68a154090456ad72921b0e9751. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEUM72406741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e93f782fe0f71c4f8136c9b238409a9c230f451aa0b85d9fce86501835adc8. 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/QZWFM2338929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148f3cc49cc1f7eec247cd898df7cc0862760302da5c4fa787284c636c9167e7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEYW82207746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfefb1bce5322c98a839a66b7f60004bc23ab3a4c6ea38c0f3d416560179c79. 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/DEYW82207747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa135be628620a11d976b38523490c94f975472c6d017a83def8ba63eaac6b43e. 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/DEYW82207748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148f3cc49cc1f7eec247cd898df7cc0862760302da5c4fa787284c636c9167e7. 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/DEYW82207746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17cefa6f3a4e4b9d6ae4ee3176e168ee9b7e1571ff43cf6af771ca764e4ceb1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CH7812532034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90eb23977be8edb9781a2a5bebda4517861034be3792332b65a8c0e68203112b. 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/CH7812532038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b567a596a60eca7bb07fe18185e647747e1a7c3629b26767b97805fd702841. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CH7812532039.
Sodastream - ArniMakeItDrop & Schillah Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1352a123b74e044109c90e80d178ee4ba318e0a604c3f682c577868a00a424d6. 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/CH7812532043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd705a2a4b03c99af9040f167091ac0e1f244b0f686b9684ac3a4e4e9f73a89ca. 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/CH7812532045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f93b6a7b362578d6e7820dbe4fe9077e06427799bae9030d9bcc19785dd48b9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZK6N2496185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2b080c39f67a3fdce674a6ddc30b9e922f4f5ce757690c11b86a2c2d47527c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZK6N2496187.