1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xf2025331365b2faed7b42b54a494fbbf29ee48343c13267998225a6d9f7a2f5d. 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/8d1a4040-692a-428b-9d6c-5e5e52767e0d.json and https://artists.proofprofile.net/proofs/artist/8d1a4040-692a-428b-9d6c-5e5e52767e0d.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 → block OTSBitcoinBlock must exist at that height 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 0x792e72d55dcf443883b82bd30d606b9aa2ff4ff12088d996b750558f916a6eb8. 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/QMBZ91913970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3e25aedbecc558ffaab45e3e0fb591b72ba386404b8b7edc3cebdf4bba5246. 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/QMBZ91913974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd535e0be15a0427b8bc3c109d08ec09298e9d9947bcf03aa4b276b98727ef9bb. 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/QMBZ91913977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd175300d2760ed65da0cea7904b2028541e9e12f322b8fe8cb926a6967e42329. 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/QMBZ91913979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1b640940c0b7fe0c4df08c99fcc69ef43833726f7f0d8132d6b407117454fb. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/VNA0M1848138.
Một Con Đường Hai Ngã Rẽ (From "Taxi, Em Tên Gì")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238a5f8eae631e4d8cf02c8ae18f8a11d38dce6ea4f416d3efc2cb07c80b43da. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/FR59R1743256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008bc1e17b9e1afb9fe9ee774e0c90feb0fc8471a1b8eb8af29848208e6af8a6. 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/VNA0M1847263.
Ước Mơ Mùa Thu (Ước Hẹn Mùa Thu Original Soundtrack)
Ngày Tận Thế (feat. Da LAB, Touliver) [Beat]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ddb6693abfa9bec50871343b30c8c346383e3d2d211ad592785a1d0558fd8a. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/FRX452123343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06043aca94e507632da6a6bd2abe4414b33dc122c5ebaff30348613151ae9b2a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/VNA0M1924567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b0c05726e740a053ecb5746fd81cb5863bbd016fd62ce76129cbf54da06f6a. 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/VNA0M1924568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20f11ef1c607d9557f248e526994b9937444fbd4023518a5cbb085e4dfbf986. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/VNA0M1927905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ab1382be99c20ce7dcc3a572aec61cd15efb85dc777fd0ace0cba8ecc45ead. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/VNA0M1929007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb348f503317ab193eaf5d3c846ddb1d47fc5eef59909023a303808660c91d586. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/VNA0M1929012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe850a8a0ed375415f1dacc397fba743fd8d69e8150dee7f72a5a8dea5358e7d4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/VNA0M1929013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2351d1fe3b1dc38b9ccf7e0c2226c90d3ced7aad98e02404f994a52bb3dc105f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/VNA0M1929014.
Mash Up: Ánh Sáng Của Đời Tôi / Giọt Sương Trên Mí Mắt (25th Làn Sóng Xanh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e86b2260ef5d2075e185d74275b6f8efaf2a46636919a7f7dfc867fc99bd7b. 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/QM7281994554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d786116b14f2f6721c10940f29065a75de8706246f2b33f7b489c1dd1dd1a9. 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/QMBZ91911692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5eab081d43808fc5655e76faf062446f180808ebd2d7e9bda4226230ae52a8. 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/QMBZ91913699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873be2fafaac9c5db5b045d016471d3f30f02db7140644a320c3e5acd5927d7f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QMBZ91913701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b0df67aefa0f7a6869831802cb38298c285ea0e52a92618d4e9181b3be1d61. 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/QMBZ91913681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e79face14269088e7d1516b94ec2d5d0ed3a7f6390133652d640409b81e346. 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/QMBZ91913688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe940bcc4e050dfbe923636c878df347e905c441a6e9f0f9393b36b032f162ef3. 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/QMBZ91914002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ee4055102f313b86c70bd75001a63a3ddecc4def77baebcaa20c32b514fe44. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QMFMG1378444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60cb6f0982931da59034cfc80e259857d563b62507d372cef0fa17bef7aee55d. 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/QM48F1148601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcca4af978d5d78090f17041ec99256885351b032493ee8b9e7160ca5dcecb7. 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/QM48F1148603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bce6d2275db44f4247f575e667dac4723b38593e7cf3c5631f3a44776e376ec. 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/QM48F1047701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858cc89a85ae6603681fb06b10d9d51b60b0295e8e9ad7af46309ac02415933f. 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/QM48F1047712.