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 0x8472c58711baad906b33981594b8ee6def7d946d3c830ecafb27e2a2a390d8e1. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/84f61bed-2379-4c3d-a486-26e40650d9e5.json and https://artists.proofprofile.net/proofs/artist/84f61bed-2379-4c3d-a486-26e40650d9e5.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 0xe3b9134fcc6bf4651924616820cf5944843947da9ea6d226a01702ad17856d75. 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/HKG732012611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3138b009f7f10182b48c1c66d06ed5d8241cb1e9bd56f325026a68bd17000ff8. 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/HKG732281132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2aa08362ca839c13073a46a4735272228d97e14a7efc1bbefa8b61f6d1565ee. 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/FRX452123366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440d5328540b0b6f8a76c06b5a6f21b3293eb41ca2561a1fe1d175020ddfd569. 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/FRX452123367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e49e0539b64c9f1679bd2b210ac233d38e12ef3ace2f97a2e2e3e58fec491c1. 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/FRX452123368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98505155381bfd686b43c50a1a94a3610b8b816b9a8af0b001d5ab35af9f944a. 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/FRX452123369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99cdd57a563e2fd02e3a652965b23d504cc4d31a33b6f08a4f5a7d0105f741a4. 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/FRX452123370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2eb0a3f646a1e29beba562e4419986edfa28b5e90b3afad9c60db6710cafaa. 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/FRX452123371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf617ebabdaeeaf860a2103cf2f73076944b64263c5c225396971cb947311d530. 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/FRX452123372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5468a529eef3130cb124584aabdb10ee4c105b29dcd89d8e82dcf1473fb07f. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/FRX452123373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b166e0deb3eb4d35c036cffaee7051cab5a98f4f57199fd3f0ec86827eff9ed. 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/FRX452123374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8951b59c2473bd5523594a699a95690eeb1a5d05c389c6e665a0f36ee1d784dd. 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/FRX452123375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea999bc3cc25cca237658ff942f108e893b280517e112b12e9da7533cdd250c. 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/FR2X42267130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977c49ab49db6c21bbe063ab7c328c8d0136d515a2822239807718212089ce16. 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/FRX452123353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc968d64fbd2a260909115b0a610354a1bef67886d54d400b102e37bb04ba70d2. 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/FRX452123357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69995d524c5846f9f4689ff97f457c0f490f7306526152c0411180eaec4be92. 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/FRX452123360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c787ea206c170b21dd2463e390797087cb170800dec7235d66c3ecc8adda1b. 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/FRX452123361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fcb27cb1d8f81de16a54b1c6d77d1834386aeeca782bafcc7a45399b43c0325. 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/FRX452123363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9988d6a661bb9c37c76442a836e02582d544324ac789b83734296a3f911c6a3. 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/DGA082350191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b8e843d0d5aec3826cc5f043ee11a1dbc9a1960eff41e65e84709bb268f8a0. 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/HKG732251379.
梁州词（《我为你翻山越岭》广播剧 插曲） (制作特别献唱版)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87902d8b6d01a7836bdfb5df2f85acc2e1079420764e56a15d00cebd0166e8a5. 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/HKG731751406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b6bba6c933903795c93049b5bda64e45d768a02bcccb730790c2af0b9ad4f3. 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/HKG731742430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f79f08c70fa9f39d090ca0930312ccf263a172f9f59b3ecd1ad3560947336f0. 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/HKG732140447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8015ebef0accdbf8622e7dfc07abf20831d4b0f143d7741d90b82703511c0f9a. 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/HKG732501293.