thumb|A children's toy called Shape-O, made by Tupperware, used for learning various shapes. A shape is a graphical representation of an object's form or its external boundary, outline, or external s
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 0x30f3956dc96afe86bfa109b660f43d420390df09c5ca8e9fd4b927e4275a944e. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96d3ba09-682f-4321-986b-fd2a5df7e4a0.json and https://artists.proofprofile.net/proofs/artist/96d3ba09-682f-4321-986b-fd2a5df7e4a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shape Walk - Sexy & Sassy Hits Vol. 2 (60 Min Non-Stop Workout Mix [130 BPM])
Shape Cardio - Pure Hits Now & Then Vol. 2 (60 Min Non-Stop Cardio Workout Mix [130-135 BPM])
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 0x107b6fd48289bced348b72f8764bc8c3dc71b133fa9ad0bb099e3e846b6d404b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ESA011626531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2272ef3712b2976e03c023eb802844e4be98352ae8970279dd53d9533fc4e1. 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/GBLFP1712553.
Alte Sagg Style Feat. Zitral, Poet & Gimma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bac2d840e991888b2624006ffb9a2a53ae96df7f9323c7f651d710f0cea7bf8. 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/GBLFP1712719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12bacaf2d67af3eb060312fed24066ca4f162ec89417d46574cdd8e71153fca. 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/GBLFP1712721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe4a8f999aeef0cb0cd9a8b6065625dd759c2d0008e3106adbdac2314ecd469. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBLFP1712724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04acada7ed3196a1ae8ef9cb80bb1874003971b49585d5e7bb9e910c10bb2788. 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/GBLFP1712859.
Liecht Und Schatte Feat. Sulaya & Black Tiger
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b33ddf5b55657229866b8b68439385da19374f35849c51c9c4eda29a20c2b8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBLFP1712869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a197109a0822470dd19e79b163a4c9af23b671399befa82d1f6dfdd7ffaf61. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBLFP1712554.
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 0xc8ddc4a478de8de7502920f8b43c57248a9fc23ea221cae7c6b1e59a4dfcf4e5. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBLFP1712720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475ad6d729c222a4944ee4a3b10d14aee15a6e4db64cecf5dd847ee62aa05961. 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/GBLFP1712726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb10522b9f5e6a53c10a7ddc5ddd5df41f2d4fca73290dc1fe5d9cc215298951. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/GBLFP1712851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31b7cdc98a72d5b2547aa54f9aa2bc5a00d0a1673b62d236f10313fc7c7ba71. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBLFP1712855.
Usländer Feat. Funky Flu, C Real & Crosby
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68372d326f5f00a1fe535035615278df8996354d2069e330dc8202f96c1764d. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBLFP1712858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0e31aee1534d90ba47ecaa69cc4462225c0df77730e62a336bb10db4d40b04. 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/GBLFP1712874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5995ea3ac663027afefa180365cf8a7f41e77a52c99e84693f9c9522854a9a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZFZ62413999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d80bd7fa5240262b593d0ad0acf800e510b22bf2ba2cefa10c44ba76781bef. 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/QZTBE2346717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c8fe1b440809034194ba281f52a5edbf19b900167f89b76b593719ff890257. 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/QZFZ62414000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe560048f0d439ce51119db26e5d97dc8c91b792efbd2f1acc1d0e733d3fa9bb1. 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/QZFZ62414002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c27d757dccb220fa65390462fbdbb3049e690010a4ff590f5e5e2064764783. 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/QZFZ62414005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66068a66096bbb900c618ccda6340e61a214560c6d410ae798783c29a23d953. 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/QZFZ62414006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8dcfb2178a0a901cc16458dc08d551d24c69a52aa596e9eb94553026074ba2. 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/QZFZ62414008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9382166fe090aef0ab89367231ea1c277f132ca30c46281fb46a6589ab050130. 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/QZFZ62414009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182bcb36b7928183b36a905f28286b59577076b7fe2c627e6302044d91569d17. 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/QZFZ62414011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b6d2a3bfe0cf63cca21140dc10349c006ce5343c47a4f0dfc45a7ac3dd42ab. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:53:05Z), 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/QZFZ62414003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f422afe4cf40f56957ea85ebc65dbf59e2fa8e8f3e6b2a320c01e28dacabc29. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QZFZ62414010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee076c084af8721c0dee79d11b8d4d2581b41205784037b9ea726697bbe4727. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QZFZ62413998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecfc700767750eee0163e188e24452ea5545e1edb1ca8d9de3bbf424415f2bc8. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZFZ62414001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fc70d43c3bc4607280be049dff7f2df82889b34b1f7f7cc075fcb149258c83. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZFZ62414004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f917bfe7f38d2647dd02df082168e0eeda8aa7c9c763ff2de4350370e9625cf. 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/QZFZ62414007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc757b97729eebe5678909c63c6d7245a0c469acf698c54413474521abc4648c8. 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/CH7812222098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73860ea814952bbe3175747d453518782e6f8d91d0f25f80c41a37265790fcf3. 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/CH0600200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57cd5b6581889473307410121889cdc9668ef3d336efa105493b1aa0aeb05a59. 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/CH7811605268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21505273c04659051c5f913c66232b79623fdfe527b06c00e7e075f6c70b32f6. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/CH7812222100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6661f4cbc733aa3d8bc3933d3b710547bc7d7d5bc9151952d8042acbf968ef5f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/CH7812222102.