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 0x5939714161109571ab79ccfb46381642040ba0c4908de281d309001715488233. 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/9871c881-bc21-473c-ba07-e7e9ff5171b0.json and https://artists.proofprofile.net/proofs/artist/9871c881-bc21-473c-ba07-e7e9ff5171b0.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 0x0af27cc75efc4f9281a871d80a81f9001584afdd6cd14629281df4f03bd7251f. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:44:45Z), 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/CH6542071369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce6437e05ef3c82776eba31fba0fb3a49d1382d8707fbd25c1a4eddfec4aa01. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAFL2191492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35492b6da96a064a7b2201f7eefed1d58593982e82a8be8ae4462d045ee3f62e. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/EGA262004449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f7cb527f01610940f4bffb270cf848c7477e39b96392bd83b76eb0718d59d0. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:08:11Z), 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/EGA1K2009576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1dbbbbc1916f1cd416981b5490897865d473fea8f7428a3f187335f04b3c097. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:07:52Z), 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/QZFYW2125110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05363f2b38672d487c5fffe758864d35f8d98b9ec5d92abf0dde461e79639880. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/UKZL42100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530324fe25e609457a105e27a3fd0eb31b91034a45a6808810228f06bf79ce0c. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:44:21Z), 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/FR96X2110489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1de05b7ab8ca0ace2d3b2f03b1893a54430d40f6a42afac4f87500bd559a37. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/FRX872106348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2078fb51fb9df850a2760a567cf848727e6bea9204a8ccc1531b4b6db11e80cb. 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/FRS182109299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98dbda66a8cb021f49308cf13314a448bd322c6437702458965019db6380c856. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/QZHN92347320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1def7f929f0d8c351444174ce9e3dd4a3a0d3c94895657ab2642699f2d0b38ef. 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/QZZ662318227.
Hadou Bghaw Yaadouni Dayerhoum Za3ma Shabi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4439bc908fa5aeccdbd58d2f6f095858a47c373804bb6b3d7e2dca5d5309d2e. Chain 2 (Bitcoin): anchored in block 957552 (2026-07-11T10:04:42Z), 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/FXR752302595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365e6b0fd53528eafa0b7b23f545f1f0f53be89754790141aaee813e3f93fe43. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:04:45Z), 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/FRX282458860.
Ya Ntoma Matbghoch / لا يامولودية لاتشفي فينا العديان
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103abe536ec40ba2494814fb9c2025ab600879015c25c549ed9113b0ebd772f5. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/DGA062446924.
Rahom Bel Allaf Nssaw Beli Rana Ghir Dyaf
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edc3d2b25b0ed642e1469ce903cf2f855d9aab85486bee8a76f3431e056044e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:58:45Z), 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/DZA102402481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbded7ef00ac43b1fa07bac218734a416fd4713dca79976f9dfc5dbdc95596e96. 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/DZA102402519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c1f7b733be9a4faebcd484c06dee828c936fd270c4968a98cd229c638c2746. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/FR2X42530512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273bda746397e71884fcf169636f7bc7f8fbffb5b453973ae41f0a1ccf931ccf. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/CH6542509590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed412fb32590c8f616fcd91280af1fe700080ceba0ffc127c8fcedd70fa94b82. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FR59R2589457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa6900c2c6bcaa04a397a6f3c006fb058726c2d092b362a7e41b0fdd4080087. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:57:15Z), 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/FRX202527104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf707d0fab601e5a1d8ecf1ae1376b0a699fccf5ea1135db2de8441fb49797423. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FRX452511498.
Problème fiya machi zahri (Rojla fel good)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e5d94682f6eaa3f01d7621bd8df4bfc86848f3cbeec6b80d16ae1a68d0ccbd. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:13:04Z), 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/SE5XG2508469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecefe200c9d83ed4d283a480abcb3ea94274f8267d41845729f2f2e95e954a0. 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/AEA142504620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2cf1dce649b6359cd297a4a9280b01b1aef6bfc8e94da2056e92e5eb36a5a8. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/DGA062546334.