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 0xa288804ea9370a5eae9e33ea18ab7e89a712143034b5007e7979ea4e17e07327. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10122d93-415f-4cfc-a78e-ab52adf0b31f.json and https://artists.proofprofile.net/proofs/artist/10122d93-415f-4cfc-a78e-ab52adf0b31f.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 0x096acff0e25f6d60eb58c70f22e0d066fd42aeaedeeb606d0a1640bf368fbdd9. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZMEQ2249363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23fc5cd960e1c1187225eedd42bdb1a9f5c563acb4168ab436882ac370cc4cb. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:54:43Z), 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/QZMEQ2249211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03e97927b12887e5af4046940d07f23aa52dcbe95ae9dc5498b49b518dadf1f. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZMEQ2249358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84ab6391d69360693b91710ceac3edaeec5f6316decc34910a616f58852899c. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZMEQ2249360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e769ee52f8519c30198e377c769d16b859cfbb37f049b6acb74331a81d785b9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:28:51Z), 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/QZMEQ2249375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec98d355706240e9f3c7334a0c3fd71cb21ef9bddb7bbf0a0807c08a2d7ecb4. 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/QZMEQ2249373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa9ac017ff85d6c33fa5af9db97724fa7aa43026347c102a95ad9c62cdd2e49. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZMEQ2249542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e98a23a92be8311bb119157bf17e4367a70081d56ea8dfa1d37e8fb9d26a6e0. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:42:25Z), 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/QZMEQ2249364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69dbe00d7cf77845d183479124cd7e8391cf9c24ee16b274d43fc47b4b756ac1. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:45:45Z), 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/QZNWQ2252670.
Teruntuk Ayah Dan Ibu _ Keluarga KH Rif'at
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f5f5de4e1e56e71090cdbabe494674cd630b6d696b0c5c8678da7f41990bce. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZNWT2279747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5027f21d20af7f15b11a1f2fc55f23f8ac7358903cd67e56f83638441dc6ca6. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:01:12Z), 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/QZNWV2266606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b2b92a7fbda0a07f21a84852a1433ef4c3964e46bff47427c147ef16959de7. 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/QZFZ72388678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12e19ec89718b84c5fc6b84a72782ca15e8e265214e96467c6ba31472217b85. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZHN62326978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89adb798c8764740b70e6c787340f3007c36c26ef9c34a992aef5d1dd56f288. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QZHN62326965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3036a8d38a2ec4b462087294e608803d38b2148c292e36cd3fc9e4d9fc6289. 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/QZHN62328456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4fe056a3f59652c0e3b912c29972e59f0102a4b1a1141fc38fcaa1b8abcc25. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZHN82301563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22e6d6df39cb67603a3f17fd8cd351858de556ba85a8fef3cfff14bedd02846. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZNWX2379569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4702286b4ba66b1eaf317968e1c685bee41417bc3fe7268e8d3c9d6d1b8f91. 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/QZTB32310457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c89b1af8eb2554d92969cc2a5ef33ad68b8f087d0de2e70b0131cbe0f5f822. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZTB42304093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e45530db1886eb990edbff4b9b305dd1ae584ac953abef5bbdfc4d9cbb6b317. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:31:32Z), 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/QZWFJ2302204.
Qul Ya 'Adzim X Da'uni X Isyfa'lana _ CEP SANUD & H HADAD HASBY
Tal Taif Min Muhammad _ Salmah Nurfauziah
Laukana Bainanal Habib _ Nadia Nur Fatimah
NASAMATU HAWAK & ILAHI TAMMIMI _ RONAN & CEP SANUD
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e43133225b722906d91ec3084dde67768754f83dab0f7b700c055fd9a334740. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZHNB2486811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2b8335bc053276034dc0d142a75649c8d11fd6f55e3915b62380733606007c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNWT2485770.
Ya Rosulallah Salamun'alaik _ Syamsuri Firdaus
Sya'ir Manakib Ayah Syahid _ Keluarga KH Rif'at
Shollu'ala X Nurul Musthofa X Wulidal Habib _ CEP SANUD & AZQIADAFFA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190d89f437c3594b0edcd2d43346baeffaaa95b6a90f236b0e6a532d87026e11. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZWFP2455614.
Ya Hayatirrouh X Mali Khiliq _ Cep Sanud
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2843c8b6a21d579d0933a972c35bda06633aa256694b3ebe66e92ec49cdcd3. 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/QT3EY2420305.