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 0x9f0162d2d276cfce632601066c931f9b49558531d7b1de88751fcba7ed57503f. 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/f243d87d-c624-4c96-be03-9477008b7b27.json and https://artists.proofprofile.net/proofs/artist/f243d87d-c624-4c96-be03-9477008b7b27.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 0xf8222817cbbda40e32ddeccebd5585ca3d56a8015e431fa525bc30f3c758f7e6. 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/QZWFL2398501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e612ad7bc99399c60506a4f3f43b406058b69cd912fd891481e1ae24175d49. 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/QZWFL2398504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e3df548fa91029dbcc0a906e6f0c2b142be75efb34f95f7c43aaa5707bd8781. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZWFL2398510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7846f660a1af97f84ab8d8bd9ecde987882427d38626856b9c902124cff0a25. 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/QZWFL2398511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a3f1b15e3a95a034b715a975fc2441989bff470b974fc473ca1f65b52d5366. 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/QZWFL2398514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4e0cc4912d8194f494c473bb541ece94c055e43ffc3582d593a49e10de0156. 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/QZQAY2278202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c8de071c24974119043ef42522b80b40dbbed454d48ededf47b425caa7d088. 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/QZQAY2285811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd466ded7640f5eb90bc59c016e759176a4532853e0e6d3160400685dd6b1e198. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZQAY2250774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de1f521a7d88ab8e9eab4ec44cdcb06daac6b75f50aed864f56975dfcfc3857. 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/QZQAY2245336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90bfc042e1b9fef4edbfd91132958abc16004c2018eff363db1244afd90821b. 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/QZQAY2246178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126a5a53fc7ab124f5b8cb08157c5955405323bac5eb846a6ee0a022985ef798. 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/QZQAY2254853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cf62d9b37da2f1b9ef7e7467ae854b3bce1328fbb2bce4b40835c1755eabd5. 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/QZQAY2200664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918398bf5fe93561cd39533754dc35159f62e2abd4b21935393ae01d7dbd1eb3. 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/QZQAY2236054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb69c2b585233a218524719eb795a44f8d461a5bd1289f03412ba583cc273b1. 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/QZQAY2297181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdae38b8d1e2e44bfb281a9d85fd0624417f3f8bf0482595e7879eca4648bb1. 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/QM42K2012511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db997f567343030e11af423cb5c991ef74f293f3b5eca8b6ae2581e17d00e15. 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/QM42K2059517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbe3d81cccf76459359a3dd3af923ddf81a69060e0c4e49ef8dd228040f9fb1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-22T05:40:49Z), 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/QM42K2054468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d97b9b541319a8fd1c66468aa57fa6336a48f6eb68f8b5a96bc23d1230e58a5. 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/QM42K2035140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3818e38495fc11915b3143b309fcca5eb602e2d22c01fc831d1442f657cbded5. 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/QM42K2095703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16cc55caad329a32f65b3a0ca452a941db58ec105529748c91ec1c0f932879f. 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/QM42K2065853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ac58f704acbf5f931d1a2cc1d6e49da61e2eebb931cc326c842f01876f1f80. 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/QM42K2087697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9f379de50b44b0a272ee2b32745896f8951223de2aadd2a1bb3cb051e271ac. 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/QM42K2027012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6412beebd50227d7d1379706ed853fd0513084fcb780675dff4bc9d8cf61b61b. 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/QZK6F2377091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d442bb21bee83f5daae31800a9429806404980ed501a25bdcbfa3ed7445914c. 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/QZK6F2378197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06da7196e8f94a68389f8401fa5f8b9919505686f695210e476b859b15179659. 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/QZTB42222316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d85981154e3ef58bd9699ab9fa8d7c76a40d6c6170b065cdc39ed64e6575088. 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/QZNWS2158991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17578e43bb4fb0cdc5d3609121292fcd25442a8c5847614fc8120e7a32beb4ab. 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/QZNWS2158992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8301612893c388b951fa637e1895fd5c24a93f06fa303c182a4d91ab36ca8a03. 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/CA5KR2175762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5caa0590b5022e94dbbcd68277ad8cd69770ded07483cc7a4e7e44274dacb69. 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/CA5KR2175763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d85e9ff92e2d6cc4ec1663dcc8b168a5ed813acf9968b0b78d641ddda7e7252. 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/QZPEW2416481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe952e352373403b81455d30bdfe94eb1d815ac4e36ff37ba051269fb73ea1b34. 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/QM42K1944784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdaab8d147f960e4d387e01091b9d47d2af37470fe0ecc3dfb7a723b67641249. 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/QM42K1968348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16caff13f96f5a2373d2ad468d5f423e309d6443149a4e131fc356305d1cb2fc. 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/QZTAX2346455.
Cosa Nostra - Hosted By Dj Rennessy & NinoAndretti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ec1f85b47eaed4cf086008c86fbf21f0bb048c39424cff77a5fbd6fbbd74a4. 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/QM42K1985800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe952e352373403b81455d30bdfe94eb1d815ac4e36ff37ba051269fb73ea1b34. 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/QM42K1944784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43dc0067358e1d20f0a5d32f519a271b94aa8acd78fd8b07718d98a432fc700. 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/QM42K1946293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1e5ba0ec86fb2f11f289eee688b59c20fdff96523872f7b11ba08be6928e1f. 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/QM42K1948879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e05ff403c6445105c648ff83057feec3d6c586c9d642c649b2467908e669928. 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/GBMYF2200118.