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 0xc0c40f3e24d0162f6e479dd4fe589885fbc2c5fa39f253d50c07a0ac8481c0a4. 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/05a99dfd-5d13-4001-bea6-012cdee8e970.json and https://artists.proofprofile.net/proofs/artist/05a99dfd-5d13-4001-bea6-012cdee8e970.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 0xbc018f1f9cab1b74fa085c76a861bbdae4dd8f6a54c892a6513df36b3de3fe24. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/HKG732122257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5288c2ded05f790ced6afe562db740d3503e1d8581c3821ba4cb1e185d4ec21. 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/GBMJG2309686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77accc687641f7f8400dff72d4774529c305203c44160ebc2727fb35431a1d4f. 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/GBMJG2309687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a0a75b52df8a505518a9acfe86d48c0235b5a0bcfce33e4d355e0d27062fa9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBMJG2309705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501ab140669e4f8024112d37f7eb505218b7cb04e116ab5cf21ceb36e0d5c2e9. 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/GBMJG2309718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117203d8942e522f3d5970c691f202749ca8977de81c58f1190dabd9f7cf146e. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GBMJG2309719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93222c67b5bf6b09393d50616d09006d78a82a5a1a3726dd6e7c96161e5e75e2. 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/GBMJG2309723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab97ad819aeb83f6fe64efb91f605b00bd0f01d65529c6d07579bdf735a6a50. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/HKG732296108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4a48f004c3f1d3cee4e82c521e5b4af7b13176d9e79fec844d55f4cbb5f45c. 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/HKG731859210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04733e75e8567d5e969e8b22aedefa039930952575cb8f4738983f230ff804ad. 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/HKG731859211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0286c85a7528ff6ad2ac638baf11d34b27b4e5a193426028e22b5f4d1815b3. 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/HKG731859213.
九游青云志（九游·《青云志》官方手游主题曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa795d8aaf778fbabe62017fb7b6bb1005828bda98bef5047773f0d9617a795. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/HKG731859216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4678c80622d2ca74d8a82228fcaeb567d27fae83118857d23e0e4a59d1ea1111. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/HKG731859218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01feb33b576f86321e09751f33d6f8ab4c121bdd563749729b166713c8feabd. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/HKG731859221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5551b8ccd414112ae0535cc6ccc96a5b22d8e5c16bff0af6051cdc6a351fe99. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/HKG731859223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7d29d5aaa25c8dca73da19583904d8a0a84b0194635b0a400183b80ae010bd. 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/HKG731859226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb883ae1f2d1e3e90ed4887ef35b8962d1fa53ccfca1864029c6acf06b459343. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/HKG731859227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a8d46b7eb6b1958541a89d41f15e4d9ba1b06231198765fd30b8c86613f0df. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/HKG731859230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d0e75c4959e6974d13e2317c7e9fadc9b9be65307e2682c9ce0685c621730d. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/HKG732040929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e8aad8528f6e5177295bb94a9cd9608555526986fbbc1e802e2b60180cd42e. 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/HKG732254820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0001462ae0c88ea6e5079faed84ecba1e0f0854eb8839bb0257d002e00bc1a. 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/HKG732118255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ea2340f2836969b7a710265114b5f873e512ab83d6443f2c1f6422070b767e. 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/DGA0L2370754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab10360a16eafa45fa7d8a9063e0ef84cb74d97f59dacd0eb9d275d8d11e2c0. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/CNZ782001781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff202c2df3de1e2d091051a94ce69a4c198701882ff6508725cf51761712b5f6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR59R2333139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a9332ac6806cf406ab70a8746dab742f256bea74f5c1f0b4a222cff3d212e5. 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/HKG732232198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6194b1d06f62ccf99895a25e72bbae28e9aa10e62a46c0024aefa60044a7f467. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR59R2341994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1f399f15c977bfa5cda77535b9e5b2165e94cebedd1139c1874427d2fe878c. 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/HKG732154036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310ed9a07e0e7a7923d776dc77a5bb3a9a56b586f3226195df953081cb10579b. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/HKG732118714.
梦里迷津 (广播剧《东邻西厢》第二季主题曲 I)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc191d29e384a3f1854b91620e55f9559218a85a1943c7ab12b7e51099c8a6302. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/HKG732154037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7579c7a7ab3465bee4cd210823e249cb3c71858015189c8cb2808dc6bac26b1a. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/HKG732028423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ffc232d60d20b3c23bb7d284311fe4ae52f90a13e6c266faed67f85b7e23505. 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/HKG732017587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ebc543ea7b44c43f01f24d1bac5dc3fa91d41e73706ce8f4a3b9c70cfaab9b. 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/HKG732017588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bb8352b1ed7c92e207a2e365a2378471e4ae7bb3641a699713d6937ab909a7. 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/HKG732001872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7fd54b0a7c8188139aadb4c44ce61a4167f3a2ec0b8ef9414fa25cd8c596add. 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/FR96X1960873.
“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 0x22cc1cf526503327445e3ec48e553e0c094e2438ddfd090e1a6be9ff184c9818. 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/HKG732242871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7eba743d466f5bb71cc9b1be4652f94411404125ab4f7362ef642fcfe732ed3. 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/HKG732242872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a055c3abe6d469d44fc93335dc3f5d15acd1c7d38057fef1f7b436e3cdec7a9. 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/HKG732242873.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342f3bf79224d1857145415db492d7b35990da7ef7aa44b4a79fa11ae94e4500. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/HKG732242875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dcf847110cc3273fdc06d59b93ca0badd664a78733bfbe53ff03800584a42f2. 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/HKG732242876.