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 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 0x0b078e5623a74e364de05eaa473b2d73ff76ea13985b23e3a17c0fe3ac60f635. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b29db687-a93d-46e7-8a3a-599f56b576a1.json and https://artists.proofprofile.net/proofs/artist/b29db687-a93d-46e7-8a3a-599f56b576a1.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 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 0x11317c9b349a91df74e5fc30c8c1b851dba2895cbcc89ba59aec9e9e59724b55. 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/HKG732131359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52b654e16fd5d3aea0b7666f6bcb9833c5b4989f991b3180e9f27906ae93431. 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/DGA062410592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2903c693e40a9dd057cca021390a08579f1857ce9d07b5eea8f55b9befbd0114. 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/HKG732457027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa191e46a838689eb2f0dfad604ea05e79749b1052a017fed7c7717697e2f62dd. 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/HKG732315709.
御曜 (手遊《決戰！平安京》大天狗典藏皮膚「丹曦霽日」主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a890fb87e4998ff4cf5a3bad8a34a82441c575a7865e5e115d94d80c8bf8c17. 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/TWCG52299747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a68359b77c247fc0bc639961000b62b3e9e72fb677810b2fe16f60473f393ee. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/HKG731627541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc13de5748454b51a0b2c7444be15cdd1dd773a1f09d2502bd9d7def053a73e8. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/HKG731627547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8afcc8e085343a84149f3faf1fb5dc00bfca6f466b8fa1d7edd168fc7d2609da. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/HKG732499536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1972bcd03c10ce64822fc59f55c34647e2b56558c296b5edb8f8da0c344caa. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/CNZ632201443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0ac0abe858e79e3574cdaeac1d877c31a3e27498dbda1b6e10fdab7c22a02f. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/CNZ632201444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fcb039dd8da943a43d4e6069ed51472ce440c75bab55356275a132aab308e3. 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/HKG732314883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28077d584bcb23be54c29a8f8058c03916a58e6e0005798347bc35a8182f1a6. 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/HKG732315106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd9faf50553d92b4a534c4841fa6e629eaf003258fb291cf0119296c1b3e55b. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZZ972312482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4ec2c4983fa0854ff55e0722742ae5e60452bedc677ae13e1f3c4b64032e1f. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/HKG732325547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25633d49d494cfb639a21c97a6f19be9aac1e421fa6fc8738a2d8443797c20b2. 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/HKG731622216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8b2ceecfeb1908cf801aea06ae152521fe1881fee48f8fa09ccf1bd877cfe1. 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/FRS182059017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ed7d6329503e8fdfa2067baa32d07ec9d44b191550d0830d0322f7ef72d9a7. 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/HKG732022424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c68522f178822ba2cf2b9c4bf5f8b9d505be6249b8656ba6a1c8c59aa5ff28d. 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/HKG732017199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1071aa51283247091c964bb70c1f1ee7766689f572a93dc421d6f13eba5c7eb1. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/HKG732005390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ee5b517880945ab863034e919da62dd10f0a9cd3a59f6c19b3ef782028c4de. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/HKG732142708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe71568b5091fd4dfb43d5a2f487253a6294a28566a176b125758d6fdebe14b. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/HKG731907477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784b0b46098804010ce7cc381a46643745ea38e1a0cd36c2540d2c8ac29390ea. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/HKG731907057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135e40195be5ad5af5ca237544117363e8f4cea9af59ac16b8857dda08b6a910. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZZ972312468.
“雨歇谣”《盗墓笔记》八一七稻米节特别定制专辑
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2263ffb5d821d135e79a0f05bf172d5e1f206631483c97f1bc03466a0c50fa6. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/HKG732242874.