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 0xbedaeb311f732a11bba211a3a7b1abf4bb37c931b22dac0e862f2d804fd3ec87. 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/bd0a4035-0b68-45b2-bc39-09191d351c46.json and https://artists.proofprofile.net/proofs/artist/bd0a4035-0b68-45b2-bc39-09191d351c46.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 0x57042ed7fc82eb0f4fbdd6c74088292ffebbf5eaf80109fd5b97e96014f94f87. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZTAZ2429447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd165538c513dab039a52c74fdc1dd74aa0e845f3c5154cea80f2d977517a3e. 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/QZNWX2446352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aafa93b3ea53f66a52105920072e5f01b22a9ec41668895e031fbfcd41285a2. 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/SE6I32485108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd513bc4697efc387024ae730c8c1e2586c6e93323ab28e00fa37a420fca96dee. 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/QZTAX2389280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daa52d33b12a7e373786736b63b53c39145228854be1072ceb6a635b27bc552. 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/QZK6L2387720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a80185418d7ce843a5afad7b1e22d0da1311fd1fdf3729273f5ef9141b1078c. 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/QZES72358771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3ad9a0b40240c9829ac675ea0bfc4e583285ce1bb7c39e05d98462eecec5cb. 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/QZTB62251126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb116c5234a11cf1deee17f2fb067ecef4f699c46e46bb643d8b372f29e783e65. 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/QZNWW2210437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f025414de433f2ed10a645abe37d9e1f7cfac2e48ad314fb147ae42f533d745. 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/QZK6K2220400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589078fd44a3d59831fb0c43fca9cd2adc94773f4cae804ffbba9180d4ac7f2f. 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/QZHN42234445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f13df56f3dbb190f8b21eaf5c5ec47bbc46c3351782e36e504223fc243b65d7. 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/QZNWW2048783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c404e827dea5b1a55b55fe8c993a4d0834d0f05ab68cedc858089cde693b2d. 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/QZNWT2036662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f28a75a01ccb4c64161840ff2b0cd7987a631b274a702a566ba339185e979d. 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/QZFZ42077201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6ba4530340425c1a1ee863b04b29e25e0155563b91c6f8899bdee340cf1bf9. 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/QZFYZ2035779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b86638989407f2455d9a5b1c62e81c782ec46da2d625444a9bfeec124a54855. 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/QMEZE1897069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20a9d00226d3d933add817ff1196857eb4c61712b3c1eba6dc47759bae875b8. 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/QZHNC1984966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2b3548ab16aab361e99699d586ad423bb8e41e08c307012c6de2832534e8c1. 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/QMEZE1840648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144ceb52b3942e36c11936bae00f9dcae9b515f31909bb521aa63355f8df82e1. 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/GBLFP1778764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6d69aeb247e372d4956339399d341d2b9656b90642313c6db6105b82167deb. 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/GBLFP1731868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f5a4508371b8bbd20979235750f3cac876a52fa046bbffb4f795618b5ffa86. 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/GBLFP1731867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea0ebe34d8230082e3ffb0474380f5749c274a9058ffcb779d889cd7aef26be. 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/GBLFP1731870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8e9d6420b384210b5cce376db2355d7eda18dbea9c11e608cf46af4efee8b7. 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/GBLFP1731864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6911034b35cfc3bee4b201d175e0843f3bf86794ef43dcaac1090b373903fba. 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/GBLFP1731865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7500819bb77bb1007f49fedb87f710436d30694acb25d628f6eed3f15f1726e6. 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/GBLFP1731866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ff4d92462d10829e1348738a3749a6ba3cbb1196f259fd01743f6c7bb8eccf. 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/GBLFP1728878.
indiemono AMBER CITY | Indie / Alternative VOL. 03
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fa9b1b2ee3323deba3e85fcbf3da16ea494e03c3c99ce2b50ec3a1f0b502d8. 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/QZTB22491952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3bdf6f4e2c5e724f69b14ad94ea56947cfbb73af679302f766fcdf40707016. 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/QZNWY2488398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9413dcf71b2fcdc89d67f08ce4fbbdba30047bfa1bac14207216beac606cf50b. 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/QMBZ92464671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732e19ceed912fcf8b5a9a11a006af07bb9cbc9ba75a991be358d7b6c760f09e. 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/QZMER2499532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14add3db6d997a26a020b6294a99e2bb5fde8e21dbdacf51c668650806f301f. 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/TCAIM2469494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57042ed7fc82eb0f4fbdd6c74088292ffebbf5eaf80109fd5b97e96014f94f87. 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/QZTAZ2429447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daa52d33b12a7e373786736b63b53c39145228854be1072ceb6a635b27bc552. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZK6L2387720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6242951f43c03479457a9777cf7df9900d03fc6de08adb9f9f47619924333bcc. 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/AUBEC2184315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd9cbe45fe76106ed1b9e46aa6277b70cbc4961a4076ef73d51a6d60bf9bfec. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/AUMEV2218066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa762844fd647a75f0987305fa508e165e1b0dd099c8704e64aff27bdc0ab6b1. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZFZ62366450.
Indie / Pop / Folk Compilation: June 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef04028b220e76d13512dacc6b3115621f8e66851df219bb81c1612c623118c. 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/QZDA82366443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefb7db21ffb20a22a65de1028987a2903b02ba56ceb2d579a9d9805b84759ca. 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/QZNJV2320021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a80185418d7ce843a5afad7b1e22d0da1311fd1fdf3729273f5ef9141b1078c. 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/QZES72358771.