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 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 0x8c1def6156b255d6c6935c6ce7b270f45822ba14c24cb040544f2ee454beeb24. 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/8aa4593b-01fb-4e80-95e7-e874bf466bca.json and https://artists.proofprofile.net/proofs/artist/8aa4593b-01fb-4e80-95e7-e874bf466bca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Lingering Blue (Backrooms, The Blue Channel)
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 0xd3a4f34112867faf41ac50f856294c63bf97c59a119cf7ede20b88d67626aa5c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZTB82266528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb40bc161f38c19b0e4e3845ef45554bf4352d1ec9e65c3dfe13e97023b8b0b8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTBA2221993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3653fb38eb794f4326e83f6e50460fd9f982674e86361a2267364c8baf919dc9. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZTBA2221994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88bb0edc61ee5c2317055c9b880c9a108d40a2cee3b258e500512ac18a2b4129. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZTBA2221999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3382fd23319e24e87388cee059c2225c9a31b529666bb53ae6be6eb7d19445. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZFZ42389256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5701c9d291353523d7bd78014a3532f60a6105de7b58b3db256cb74bd05aef55. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZDA52325335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323c8c4eeed5b34c0aa8690251df2b91082e5149f9a7c44db4808d01a1fd1bb8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZDA42372055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c93b374980300aa9fdd645e98c1e585e205013d2373e9303e57385ace6bc6be. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZDA42373083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5aa165ff6a0e828a89b5f7c0705dba1a120224ff0aa1660bb2b10f8d25556d. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZDA42373085.
Greyscale Staircase (Level 9223372036854775807)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2c90db69d3eb6e0fd5a24f631ac37f09d07c822513c6a6ba060905b4a7f766. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZDA52389522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca894385f4f0e03d291ef9252cc91ec3af7b39aa252ea63399f352ece4b5f0b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZDA52308928.
Into The Facility (SCP Foundation Main Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a34f5913d1ce7fd1a97573fc94c8aed2424c7ef444399bccffa4fd661a2dcd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZDA62391756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5ffa87ccd77a585cc6aa88976fab082f5c019757ecfe1e569798dee84c093f. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZES72303218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d53aaf22a339412e4eb87b9376777f31bd8870ed9165789ab5417d929c39d34. 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/QZK6H2317146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf834d04181b63d575c63e893806088cd34ba5338822de0743e48585cc2839a0d. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZK6H2325405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad16cc09a4e2515c9badb997085aa184e39d9d11dafa3467e0d65b2c72a3f21. 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/QZWFQ2321806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02cac2887550f82126cc41d5571144de50323325a57d7b37900f22b68039f97b. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZWFQ2321807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d89c878b9950447fd3368e77dade3038e8ca92b70d75d645de0ff60f47cc3b. Chain 2 (Bitcoin): anchored in block 957720 (2026-07-12T15:26:09Z), 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/QZWFQ2321808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1215e7f8266642b10c2e91cb798c8fbb99e329b0786b05320211fa677e07fe84. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZWFQ2321809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021afcec443ffa86eb73a07e72b7de8be201120a78a46f214e3bd8df5b2a3ab8. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZWFQ2321811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b88fd15afa8d65abc8a1776ec8f6fcd441bc782ecdc543d1537e55cf2e87596. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZHN52428844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e242b7c5ee3cf728e7adf8bf2e644341f717914820dbc93a390e3d35456f88. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QZMEN2473942.
Here Comes The Insurgency - Voiceless Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9730efc1a2a90cdc8310be736c443dbca09cc5eee3b15e28db4f6c3555ab8fc8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNWS2403902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4c193f88c05c354a28268c81e9a345838f9676c4132e742b88ab9aec4ed7f8. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZTAT2401666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4722c0f42c006969cc61ab60956e0ad3a63f396c55fa313d549a2b8ba6601c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTAT2401667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c4892285e437af9e3cf0615999c228c204bb0581521647ffec22bda2503b38. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTAT2401668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87cdc763828d02726e842c860cae1d834a26c5b005b0669503b14d6ceb3aa1a9. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZTAT2401669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b61ea7b4847afedbe4ac068feeee971585e9a3be9d947789b99dcd3b6c57504. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/QZTAT2401670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e88816e7ac92ee1eb32a5153b719627c3fbf092e5560dc953148ed80263ca5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTAT2401673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01094afee4c8192e3eef6a86fcc4655fd26d40583e1cf9176f768f72ea310cca. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTAT2401674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587a67a0dcb5a4f10414f44d5a847fcdd531b55b6ee3bd9b3eac0a7297147f63. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTAT2401675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fffcb0fe925525d55d68a8d40127d2f505aba9555b61d1041c2a6c1b507e6a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTAT2401676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948bd78035d1f97c615cccb1e6cab9d4f10082e13c56362c360d32e1673bea54. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZTAT2401677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c1b0bb7df07e4d1d6877d6afc41cc6479c1b779667c9655a1cf9e9bae4d20c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTAT2401678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f3afd3421966b615921e30bb1ad308b8d4ffb8afda1a071a4b0f7369c21bfb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QT3EY2543593.