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 0xb96f0da6d0a0cef8520bc8c5cbc7c2590a4f387730e73103444eea9d1782b47e. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6fcb2d03-cead-43a9-93b4-133358772ed9.json and https://artists.proofprofile.net/proofs/artist/6fcb2d03-cead-43a9-93b4-133358772ed9.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 0x9f325fa005b6066b5fed165da7873f3171fab784946b6169bd96feb1c426a01b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FIRCR2200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295522ad14069e3cfd31ae813c2b420288e349ef350293f22ad26e37f7ddba0b. 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/FIRCR2200015.
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 0xa69a227bed7ea2127de05cbe763a1827c1e94f2fed95d37d586b68097ee7e831. 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/FIFMF8200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed53aae9730f8fc6c583691da47ac6bd705e9da386973d634060b2f874e37dc4. 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/FIWMA0500167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77090dc785470467b611390cea76a0523ea71704975290e4a52556443f7c8406. 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/FIFDP8200900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64f4b84d530882a9e6f4a62383bfd9f3c3599db654005669620703ead04e1b5. 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/FIFMF1300002.
Tiina titityy - Birdie Song ja muut talven hitit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12db9613504f953c49805214180d311625d44ebaa33e065ae89977ec50796772. 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/FIFMF1228543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178ec0a5016518828db6cfce4e7e8ce7445baa69f110cb59aa56b4081fae309a. 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/FIKIE0800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b99252127a12dc6341a20d0cfb7251ad23cacf075b7069f7f347fb52397182d. 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/FIKIE0800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7207ef56f5602cc06baf740ed42bd5d79aa005b942f6e932c4fe7856b346b2c5. 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/FIVDC8500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0584c206e8a334046a2fc548f40025793dc76138f27f4af709dca9bff03d61d. 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/FIVDC8500080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00430ebd4d75fb99ae6f86268d0da6bba9838731dc221932a1e6d484a3d2b1f6. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FIVDC8500077.
Riman alta ja ohi maalin - Suomi-Iskelmän hurjimmat harhalaakit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30472a549b49a01e40e01b8a7cd7b929736977229fc7eb1ec7753f86ae57b84b. 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/FIFPS8100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3d81aac367532da0b7c8955ae813ae51a9af9615051c2d4889696cca5171e5. 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/FIFMF1231351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab6d0553c0e591e555ea7be1171911b878773a2184d7e1b2794885d127fe3db. 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/FIFMF1230312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3961272cb5bea9db9d2fe0d77f38ae1868518224dce354ff81fe4fa7e508aa3. 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/FIFMF1231326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf91d99f9d7f70a25b25bd18184097956244cb1d66a8612c0a2f70a00209b515. 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/FIFMF1225582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a1433cc9ecf4ab0a707d5671de519d45e821d654299a8920087a20e2704b1a. 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/FIFMF1226327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d62e933c4adda28f1d9282d4cdcef46bdbd3b3c5886be876c31d1774292182. 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/FIFMF1240316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe039be7c805929c92f23934186c9651fa3af0825ddd5d09e25b7f9a326dddfd2. 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/FIRCR1300164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b688c47b74780768e2fa406fab89fba263f25c1508db01fd15b3ea132fd15dc. 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/FIWMA0300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d456aee45492403b5bbbc494129e01a49cc8487415e60fc90d22d5bfa8bd1f. 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/FIFMF1224128.
Sadepisaroita - People Say It's In The Air
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fe861824a77f4576fb0730b45f27bfd3e2035214b8e6f73fa525b39d83141e. 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/FIFMF1232070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd250544c9cca761e6d6c7756860b2f1e39c1ba599468c06a6e4be181b67fdfee. 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/FIRCR1500157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fb9e95d96e6480c2570639fe6b17720900237cab46698c7d09b9c5a3f47a70. 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/FIFMF1237873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7f3fa9ad844844e928d08e8eb3aec5542b51884542564bbf0ad17faa9187ee. 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/FIWMA0600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78eba3cfcce3d53b28d6b165d7beaca687005638d3dd71d7cbfc69a073495ae2. 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/FIRCR1500202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85a92ccd16079f358e0769723ac69d74c855f50a25aa4f748795603ae7e8b40. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/FIFMF1200136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe7ef63f1a03d2e452183e04c333e5c69d701b77127ef4d675ed3a4bf30dead. 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/FIRCR1500203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5e2ae553a450b4745a6426a905e686df4d9785ffe48b5b2321e1e78a418091. 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/FIFMF9200401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e3e570c437734132809bb2c53ab6efb763d24b216944cce1c215bc8c9cf752. 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/FIFMF1100043.
Legendan laulut - Kaikki levytykset 1979 - 1983
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f486699905d1c559d907995d06886c1a8e099f132e8f9c1a82574d6a391e54. 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/FIFFD8100007.