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 0xcb0bcff6de15e70bb54dca2d949992e32699119ac069581ac48155566ef92fdc. 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/3e47d46f-a0e0-43f5-8607-7f12f52a745a.json and https://artists.proofprofile.net/proofs/artist/3e47d46f-a0e0-43f5-8607-7f12f52a745a.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 0x73caf7f8b6d916e7a1e8cf033aac7dcdccaf10f6800e66ca567a0dbd3b74fccc. 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/QZMHP2426816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904b675b4dc58113ba37250a7baecdb9d0975b3227cdd7fd9a15b6bcf39a27d9. 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/QZS642279257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0cf7b0112d7523732bc1f55ec352eb8bf587c4c7af1d0f30041672591d672e0. 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/QZMHK2401957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78130ce82936f858df385e080ca06b576df7cf6ad1e8126f1f33871480a71716. 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/QM42K2448740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf325fc88ee76ddf2dca5ee93b23748cb24108b38c8bd8e6214f590178b92ef7e. 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/QZMHL2447341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407964b1b8d652056fa482db614680efaa0dd6027e62e2942a031ea9055a74cd. 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/QZS652486575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e92d727a9fcedd44b5cb9f0f596ff7e43e741d61f94cee6b2d6b311a8ae1ba. 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/QZMHP2382026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99059349f6438a0f8f2bd0a8351f911fcb0b0cfcf3a19066e0b0555f57d787f. 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/QZFZ22316879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75a7b33430a49eb3ea7e188350a61dfc7e216b1046a5e6f167cb2f8f654275d. 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/QZFZ22316880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc10526940e31f2cc0c4ceb9d557e0ff6028a102b579c1bb70648143d38dd4d. 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/QZS632129103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c5be137060dad73cdaf439049fc1f2a6bdaf6c0f79abe26d18baaaf2352f35. 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/QM42K1993991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5aca233be9208cc79fc1509e25d93a597a0bb3904cfcd3091c27b1ad5d2bc7. 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/QM42K1944360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe35969c5bdd7468ee8227204019378331727a9809369a9807c79be9e94dcbb. 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/QM42K1774891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae80d30da5cc2880e10202b1be896db2ce8eb81429bf95933998d73564ce058f. 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/QM42K1798757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9a42ad73c2387d560a683849a655a49670a7e77ec83a530e4145dd8a482c33. 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/QM42K1772760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030fd83ce0bfc8dc4b2e9e916b9b7ecbffb3899d71c5c7b549434ff80cdc4735. 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/QM42K1713189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb3f0fb922ce7ed530446a3806b6dd02ab0247356910ff31e4c8a2d0f34a8ee. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QM42K1733710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec6f84cc10eeca9c4344325aafca070a77b17fb0c12e99e5439211379ae39cd. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/QM42K1785189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39506065439a607068886664cf6e34cefab1d7fa70e204021e40d7fe9a787022. 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/QM24S2406447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d27dc4a77ed14a151ce93787679a6931e91e2b4d8da8660ee87603a16de69f. 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/QZMHL2475653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430d2acf23de0d1b2d9c3ba68c6e41342d268c760d1280fe958fd11e789628dc. 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/QZVEM2341778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e92d727a9fcedd44b5cb9f0f596ff7e43e741d61f94cee6b2d6b311a8ae1ba. 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/QZMHP2382026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23776992b316ab73bc608b0f35356b888f1f54b0e24cb93bf0abd1c9064ae43c. 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/QZES72302086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904b675b4dc58113ba37250a7baecdb9d0975b3227cdd7fd9a15b6bcf39a27d9. 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/QZS642279257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46517fbb21dfc3ea8e1761cf78931d30948e7ae416eb02ef584390051f33ad1. 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/QZHN52265922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c204997b2a61540cfdd084075bb06c955c23840796abb83612131ac2eb8c32. 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/QM42K2293386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b58502a26d082b799e6a2d7e8b6cb293a781d3d4d3c9e636015fde7cf613a9. 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/QZMHK2038107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ba90bfc505d9f31d4ff28b5a150d5aa262345861beff2e0a329a255e99c37f. 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/QZMHN2086047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa87c7beb2adae2f0f55cb776e6a2a8aed9fc15e81433b3121b3f797c43b428. 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/QZMHL2046980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe391de718b972d8cd370720005f862fd07e6676672c0878a077075e19bfd6ce. 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/QZMHN2002447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548963965a52d1ca4bf10e6657422b1e3ae6ffa60deec27b19c43fb7ed4c62ae. 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/QM42K1972898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75291f17151d97051066dd15d63226e628c59c6be38faf69d7435d80050f2142. 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/QM42K1960735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fa660e08204ff37095b3db9b741b1883cd2c760c6788e34d27c3d7d9c8f647. 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/QM42K1983673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9744eda5225d51b6f0a0ed0e400ccd78258316d4beb67ce0053b12b8c8c4b4. 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/QM42K1922513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb811f43b567605bf48268ae4e035f8d9901006ec58ab51d7706069a8af323322. 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/QM42K1979054.
Nightmare In Ktown (feat. Brennan Savage, ColdHart, Prettyheartbreak)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67e279673806236543a76a6719dee549190201d5ebacc232f7195f96e83fae1. 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/QM42K1886245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1009883c5c336ef79c190d9133e6521039d45303fc12e4ba9fffc11d6ceba937. 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/QM42K1800822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b65c486b71ab5edd55df71fc452987a1d807c57ffb087d44e3b86666f22bc8. 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/QM42K1847402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b979832c76aceb566e7ffb2698e791b2452e8158363ba0e25466d58a607e3d8. 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/QM42K1899683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c027b79890aff154192add13f976cb376b2e026e6e55e4f57b7fafe529615c9. 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/QM42K1762900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c4c0e30c25327d9264ad0c60996ed829b08216bd6c42a2501a9e5ba8372ec5. 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/QM42K1755965.