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 0x4d16963aa44a751f1a4aaa9284235a959021816c152509f968c3d28908565be1. 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/875ab356-9b9f-4c1e-9899-890af1cb074f.json and https://artists.proofprofile.net/proofs/artist/875ab356-9b9f-4c1e-9899-890af1cb074f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wie kann ich sie lieben (If I Can't Love Her) - Live
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 0x55273e28681447210eff302c4ee807f9751e7cf5fb8f11456b3b7f6d21798b7d. 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/DELK41200609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417fb97e13eba800aa7736574786cd95700dfad6b89fe6571950eaea63639c1f. 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/DELK41200624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4d8e729893e4fa6babf5151876175fdbe5e0667853441d4e82a0799fba6f07. 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/DELK41200627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1de4edcf5a509b756e3d9262c67f254ba371306876e1111ac78205478fcfa97. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/DELK41200601.
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 0x1d6049b3d4695dc684ff6f76ed4f3e9a83ab17ab5e185e2c85a1e6e7c7ccbeda. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/DELK41200602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3f284a67cc51f4e975a3a77c63d07adfc779bdfcb7ad4346400871c3dd3329. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DELK41200603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0d1b496584252de379d0de9debbd58505d3e23f6bf2d86cf6c0567aea48345. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DELK41200604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12075c0c03449f00cba003293e0492102489a73d1330c0a3902835d542e53e17. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/DELK41200611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6457a111b9784330b2c343c7095811c3b814fc57ecce1510862524917d3efa5f. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DELK41200613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676a94edda3eee241eb0cfc912e5d184c1e98a66030bd7afb6dcc303a2a06928. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DELK41200618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04eaae99612cc1ffc9e4b2dcd2a04261f649b9ee7f1c6461fe0c134c5bda5d3e. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DELK41200619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c6d3e5291335e464738eb2313552c0edfc1b4531cd8c7e69cca513b4bdd9bf. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/DELK41200623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed42bee4853be761ba152c796092ce26b6b2f7db4c0e579c3bb03e77c4ed268f. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/DELK41200625.
The Streaming Sessions Unplugged - The Highlights Album (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc1dfa1a5a7f91c0a78c65f7f1c76a796eea1d8b8484ddeda3ca0801c3cf5f1. 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/DETN92100014.
Hinter'm Horizont geht's weiter (From the Musical "Hinterm Horizont")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39367b83fec388116f003eb59dc6aeb9562dc3681c483a5b3f1235cc84ae54b9. 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/DELK41900129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701e197cebf6625845a4d0f5c30c1477e877a45018bae02e03f591372b2e6f95. 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/DELK42100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843de0e5dc61eef2db9f17a5a70d6f883e41ead8980f790277117ba5091c1e00. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DELK42100007.
Die Schatten werden länger (from the Musical "Elisabeth")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fd0ac266c91df694b81192079f7cdb4b12c216d114f3b87e8436e3cf914ec2. 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/DELK42100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee85afa6934ffaca8e8ef096ba433a110a1800441f87c226690b92df08b54eef. 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/DELK42100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1016158a8dbcfea708f726cf024b39ec3bebdead6ff19258f13f87aa122d8c. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/DELK42100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12ec4393b80e3664aa0532944bd4a42a7026243f6a79a81606ab907442b0047. 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/DELK42100014.
Ein Traum ohne Anfang und Ende (from the Musical "Die Päpstin")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167d23771b76077c2bf5458a68d702081de3e502194cc460e35116dc96887818. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/DELK42100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabd42e1da034e1d072228ba1bea69c054b72613abc3dc1d900b25dfe3df1f18. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/DETN92100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f34ad42d2b0a9caac9aa6eb132ff6cdd5a199d83faa78de5e900a9e8794213. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/DELK42100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15890f0f09bd343c492e6b5d81ec7025cfb4edc5b9eb2e07ca34630a91cf764. 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/DELK42100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1891d9689b9576baf140a0e8fe1441a1c54c7df69b06e5b8e2ed0513c2f75509. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/DELK42100006.