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 0xd169cf2f531a6e81a9e76355f29e6845c6c8c221b4ac6ce9fec0827716fed1d6. 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/0f0d0f99-63d4-4a88-90f3-bd9c57251e6a.json and https://artists.proofprofile.net/proofs/artist/0f0d0f99-63d4-4a88-90f3-bd9c57251e6a.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 0x2b1060d6f1ec2280877a7aa71e2c39a7e696fd5acf00246fa85326c66b609385. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CNA231302857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2083ec37dd3d01600ca136ea175d6460b8a2074b74dd173fec55a6f1e9eb7e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:42:18Z), 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/TWA531428407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a0f3859579de54ed2d2bffb191c3343e08f00b697f54b59cde1b975ceaee8a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TWA531428408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79abcfeefeeaefa183d88e0ad740f6a6509cbaf1e7b2bad6a897abef25b51e99. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/TWA531428409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4bd307f80ecbfc93cc8404eaa1d0c415165af78566d131a172e44b67e57ca9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TWA531428410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6bbfdfc2f17b79eebb80c330e7b8648d4f76d8acbc527fb749d5df57468717. 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/TWA531651912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a208b25eac62813f163408c41c2a8cb669c0227c24279b1798f100bdbf9a6b7. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/TWA531651902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee9546d3a5da999380f5778f13afd06c42f504256020b5ded29a17532f9dd34. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TWA531651908.
宛若新生 (倩碧宛若新生系列廣告歌)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7190b86fec29bab0cf94bf9b948c6a1cfaae16fa9cde0919e2cbe007eb277643. 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/TWA531512859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68471686b764ddd661f4a0ffab752f699f009c5850af3782bcf8c0f7787a7c8. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TWA531651911.
不說 (電影《從你的全世界路過》路過版主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006e554e54419200dec85b2e717498712684b965a113aaa5455d78bcc8111be1. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TWA531765816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60703735ee96345631a0ae76d6a78f22953d3267dac36a2069aaf7aac2b3bc2c. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:53:23Z), 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/TWA531765817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe820be365d73270bd8a69ce6e2d6ae0f761b6104869b89857adff05a8b0c7329. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TWA531765818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c2240794e71b342fea6cbca03529abf1ac43469214e5d045b286b0c72aa51c. 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/TWA531765815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7761431fb8f484a357811dc93293fa51bb299a8120abadb8f45a98d1aca9d6d9. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TWA531765819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542c5bf5a20ae51e89aa62891f374b031b08d1d74a1eb8bed0c892e8de0c3285. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TWA531765821.
成長之重量 (電影 "動物世界" 成長版片尾曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbe3e8423158b6901f83318a2fab89fb5a4d6fb72d5f206c4c6d126eb6616ef. 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/TWA531801187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fac6f4e28f4334de91565ba3653ec3a427ad8af5a168d85edb6d373f9bc7f0. 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/TWA531818713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfd4be0cee28b8e005411d449e85512bb985b3e22c74a06d4f242d927924693. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TWA531818715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51905be1a98308de80d91ea5ac8e689a57981bbaae9456c758ede256321f6ff2. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TWA531818717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0a4c9c9ea014277fb7e74afb5bc1f689b5f48dc33200c47fcb8f6968d5b677. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TWA531818716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca5a0c4cbda6ac299d2f7b7e3e70f33ee94387301acb4f3bb5f404ecddf528e. 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/TWA532000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4c8b45e2cbfcb8a79c1da9facc933b14e1c6450b9ae28ccede14723d0a4ce7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TWA532001009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f04755bc1a0b5e23ee9097bf34cd392b2bd75f5068e51baab41c8ff2090d712. 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/TWA532001255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b5fbde220b284be59ae036d139de61712e81306ffc043ec2e3583d18a9c41d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TWA532100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4c8b45e2cbfcb8a79c1da9facc933b14e1c6450b9ae28ccede14723d0a4ce7. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TWA532001009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f04755bc1a0b5e23ee9097bf34cd392b2bd75f5068e51baab41c8ff2090d712. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:39:42Z), 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/TWA532001255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ceda70ce502aa152fbe79f7c1b5fdd37a6b9c638d98234cc0bff3407df267d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TWA532100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e4190df5d9410baefb64f65222aefa0eddb21cc01318485c2db3e9afb8e38b. 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/TWA532100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2f79f84d27edd6254c1ed440f038a2d74b61fd7ba8cf7221f0f3e706c66ea2. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TWA532000621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca5a0c4cbda6ac299d2f7b7e3e70f33ee94387301acb4f3bb5f404ecddf528e. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/TWA532000059.
想太多（2020中国好声音遇见美好演唱会）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8dc3242d3001fe2bb40d3843d76b6623c80345003ed90d3b275c83b7de3579. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKG732124562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ac8d03411dec62246b4f6d3acd96bdbfa57066ebe768e9b136bd9c1517494f. 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/HKG732277695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a866fc7967fe2636601fc1a18d636e2b45f8c94ec92852463a8e2fa71585b4. 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/HKG732124830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff963d90f3efecc3a72b77e4f1cc7dd5782a536be66995d60ee11d92556e867. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HKG732124566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc348e45cf9cfad40d39aa44036bafefee848da8ee4895b9bd90bee92fc37aa. 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/TWK231912129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee04bd6ded2205494b3d84137c55dc0e34b27d43cd218f0f9a08e838d02bf887. 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/HKG732277701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7980efa618806144c9da5367da7a4a6133e4310c2e64a83ecdd990e237a7051d. 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/HKG732279964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabfce3906cbb6f02f075201d07879a170413a76efb6741ab471ded6b240cfa10. 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/HKG732279485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b1a0fabd4d16e2a8ab4225ef182d1a0cfe16da9a62838c7ae0bf8bb8599daf. 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/HKG732279966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a17db1311764265237aef6fc3f51a42846ee0d3be5101427f005459d7af3ed. 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/HKG732124563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e50f8f8acd8fa8833a61ae6531bcfb02ba8dfa60b5414d0442b8823012ba8d. 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/HKG732124567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b17fc0ffb2dadf0435ebef0901717b5cc97c59a902976b790a30c9285b85c7. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/HKG732279643.
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 0xcbbeb5b753f59bc23eec227f2caa0bd5ce1d0343a8bb89c6ade73df38020c143. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/HKG731679246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3104029f3a92cab65a39566665a1a7a1a5e7c4aa8a3e7bd801df101c402586e. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/HKG732277875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4ccc6fabddc69d31a4a6a22dfee5586624b58d34c9ca87b5b46423693c2e9e. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/HKG732124312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef035851437d6be1b432b51550c8679b076e8600b12db45ffadcb2c9835146e7. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/HKG732277696.