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 0x70f4725ff0c2404ada65e2f7b8829d60b31822432babeaf8db82fc43efbcf12a. 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/4f7519bb-3401-4dda-b39c-86a45bbfe501.json and https://artists.proofprofile.net/proofs/artist/4f7519bb-3401-4dda-b39c-86a45bbfe501.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 0x0cb8addde1a6ed03bd649996c4af652f7fb5235cfdd1dc2a99a7cf894fb251c9. 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/QZK6K2134703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77af93b529537beb03437fc1f70c7dfed71d621acb94bc3636ccf00b7a3a17b. 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/QZFZ42133797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55dd249cc4d04265ca8af733dd1e4682c1c40e9f88bd4c71ddb7b29788486c9a. 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/QZK6K2134708.
Julia / You're Only a Rebel from the Waist Downwards
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38251bac90487244f0c65f55a05cf2b42402ddec36ee8dbab63751a85ee5ec48. 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/QZFYY1995860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4c4106453bb8b98827de1ea2931c5b0f63e891710cb11e75d2defb69bae05f. 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/QZFYY1995865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227426e1ec696f2bd5c9cb113711f16b25bc0c5c3592df3cb3047ab62be13bbc. 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/QZFYY1995867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda713a7764ca0df4b1cd463a8e50c3bd3e71555a4c51267327323cdd52395ba. 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/QZFYY1995868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8232ac7005fbf4ed7883a0fcc4cc7952147b17c995b67824ea283e0b230f0a1f. 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/QZFYY1995874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85531ea03e7c04d6878faef593c814c3da3a68a2cbe02ca17d1e0fb25577a8fc. 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/QZFYY1995877.
Leave Your Dishes in the Sink, They'll Still Be There in the Morning
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8a101619b6b00daddeda78435163bef00aa1f037d0359fd86981be73faac77. 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/QZ9JZ1703850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4f52389bae3f66c5276aae17767a8599acbfbc654a62ce93d2a5a6ea816e80. 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/QZ9JZ1703851.
Leave Your Worries at Home, They'll Be There When You Get Back
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d602940c3036add443133699edf885609a41e9c19de97e3cc93293efc6fd62e. 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/QMPKX1721227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07fa1e4570d896fa5339150fac09d8e34a6dfa318b61a177fc3b3630a76f7f6e. 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/QMPKX1721228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4d1d9778f913c1e5c0ae3cdc87901d1954b179ae28daf0e30929ceaa0ccf50. 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/QMPKX1721231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6d6a2dfb4e01954fdd76fe61b310dfb700e0cbfe1dcf190dac02963f57b865. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QMPKX1721232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fdcadf6c6bbe9e42346bf3258a5d5a548466b94a110e9a91f55014ae5a5f548. 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/QMPKX1721233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d7746c1ba7659deb2b327b86957b2f7cc98e920139f44fc4f20eb850a281a9. 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/QMPKX1721234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc02dd89f100065097d780fca7ebe8d786fd1a13c45dc3208da2c0bdb2966369. 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/QMPKX1721235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3af34b34100f1824b57ed32356347981afc35fb58ef1a50cca3921e69038fe. 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/QMPKX1721236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96df7dc409ea19e395a34a0a7ca7f41360767701cd9decb8cc7886e95b6826d. 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/AUMGB1600131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ab00416335d2fd08712da2ba3f7f60fce80dba4a7f8721008a5f94d778cbdf. 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/AUMGB1600132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63dd6842733d99f995d14890d6683e39d52db4ed114d493c2d77158a0f18eaee. 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/AUMGB1600133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c244de14a7d45beb1875a1ace69d0b0d867885546dc2506820d09128356ea2. 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/AUMGB1600134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36b7d8993b1a11c3f1fc2f86855370fde9f4b80500617249b7e411ae239f1e8. 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/AUMGB1600136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f081c0045eb08b840303683ebaf46f502a8590b65dbbd6ddfc7dea5d1282eb. 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/AUMGB1600137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95234bc29091f28ce9e3fb17bf26e4bb4bb7364a0e812526e6e0a080dc74e416. 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/AUMGB1600138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0b406dc41eed01a3423d3106b631fff8eda6d7b6c4453cf7761df49baa9013. 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/AUMGB1600139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f79d032565c40cf0be9b5f2522879fa875e270288c56cd1742dbf2cfc02a118. 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/QM4DW1742772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5604092e0bdc057f9704a94af2e44f6d641b1f2e1973f3a357ede93e21e2e71. 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/QM4DW1742773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa375875df4e890eadc813757bbd1d2f67c244f14311554f854d41ccc297050. 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/QM4DW1742774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9439928c669211fdd886c8b8138238c463847f75dd27a8d7192cff698500c542. 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/QM4DW1742776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10dd2adeca123c670d8937bedb78fdd5e3c19a597566666e840b8b14ffd80cb7. 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/QM4DW1742777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b296bc4801fd86276e202a8053ae5fa65fef1b566a70f6b25ccd1b97ed4422. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZHN32100904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77af93b529537beb03437fc1f70c7dfed71d621acb94bc3636ccf00b7a3a17b. 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/QZFZ42133797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e4767ca3110c72575b505823d8a14e4980ef06370b2241866c877ffe52f816. 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/AUMYD1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728303dbda222470ede4c1fadcaa8f4720b7d0da1d6de497fb726edcb87efd40. 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/AUMYD1400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d01c6f609a4c44ed43b1a303e56aa9d367b300fb03f7148f9cbde4135a7bed. 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/AUMYD1400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eda5b237a61baa90ad51a4402ae0e5718a4431b740920bde84233759e007486. 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/AUMYD1400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413e4b04434c6a666667b4c2581491e6be0c9b8771332dfcea737a7e93bbb81f. 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/AUMYD1400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f860a210bd9b4b8c62ddd441f54c99c3046e6fb9fd6f669caf8a694aba7517. 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/AUAB01400344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9c17e189ce9a526bfc2270f440b9f663b929fef5ae289976016df0e2a9f6cf. 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/AUMYD1400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d01c6f609a4c44ed43b1a303e56aa9d367b300fb03f7148f9cbde4135a7bed. 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/AUMYD1400006.