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 0xe8e1773c095709a5e14b33b555d08f77331892945f7fc4ba17b5130d6497cd31. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79cd7b3f-52a6-4e7e-8846-100f6dcf4245.json and https://artists.proofprofile.net/proofs/artist/79cd7b3f-52a6-4e7e-8846-100f6dcf4245.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 0xafda2a87437ab729a34bbe0a7b5734df585647a6c50195ce78b91ab9febb6017. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TWU712205270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efccba809e0678c3c028e8a08797c4b9bfb6f227e159a2d957b4a3c0d66719f. 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/TWU712205260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaabad6a81298a8933c50602c505ffe353b0e634c9798b4f3d272658dcc650b6. 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/TWU712205274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea9ca04279d019cc14227f66aac48266fc0b4b47eaa5d992911c24ca6e23b71. 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/TWU712205276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f17cfe3c8fda31b1d446c9d40420d8fc127a77c2fdbe27f081287ef39effb87. 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/TWU712205269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949b31117e07fd90a0ef5061a1e632212134f0f123babdb1256f071a54fcbcf0. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/TWU712205275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad0f7843998f30e37fe4a74c80018937f5db08da8555c1d4ea6870349a37ed5. 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/TWAE31901749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6dcdae3bd884682efe46677e7dcb742e983558ec541438526542342ffc7656f. 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/TWAE31901604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a23302e6620a1f9e3544e8b96e12b72a5a0a59ba2432fc460c6533d195e24df. 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/TWAE31901654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76dde986cc82dec1a78866575e40d2a6b085b2d020e2b154faa51a22aef201dc. 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/TWAE31901754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3aa674355092a924bde9507b81357060bfc3d73533466c07a6b1fe5b066f38d. 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/TWAE31901755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85efbd9eb98895e479a6923b556ec001b057593ce8d1b1e7fa5ee8da0e610b12. 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/TWAE31901756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57235237c5b73f455a75ceb1c128c521e9420e7737b98e716516fec6cc173629. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/TWAE31901753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f4315f3aff6756d4726c5acf28e120a96961b3ec1be67dfdadb7d08feaa5ba. 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/CNA231700282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11dfe245e89072d4b72640131cf901bbf540554764fe21ff23c080498402a82b. 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/CNA231700277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152a4d1f7d49dad4892ae731e1a0d001145a3385d51bd218c11d1864178f4940. 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/CNA231700274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaedf1fa7970a752f698e1846251cadde9c8fdc4f585046bc5fd919f5c9fede0d. 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/CNA231700271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651202f5c5c5bac82d6622aad7888eb4702f288ee142f928ead446ca57320b51. 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/CNA231700270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ba4118e199f25124aa6b3f1b98d9af8f39832fdf798548913ae05e1c328429. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CNA231700269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25628ac9e7082e25be48865ad2365b5b233f5575acc4227c753f3ab8722ed201. 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/CNA231700268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e2face6e61c53078bfbbb522cd70b03bb1f56a2213a7742e554a910a9e544a. 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/CNA231700267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0eaf13fa73a5fc90a28303cb25ed05e6388829ea9570eb59b02d4a49158a1b. 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/TWU712400689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9f5aa9c1b298970d4a2e93febac0b13e93bf81e57975a099a9ec3eac8cb3d9. 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/TWU712400690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac623223b3540c9cee71dcc6447d499819508d3d1d473f3473bb23d8656ea561. 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/TWU712400691.
滾石40 滾石撞樂隊 40團拚經典 - 夏夜晚風
夏夜晚風 - 滾石40 滾石撞樂隊 40團拚經典 (原唱:伍佰&China Blue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ba54b7f7fb4233791d22278be10247f10ab8ef10913af37317640e5306a8fb. 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/TWA452200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a23302e6620a1f9e3544e8b96e12b72a5a0a59ba2432fc460c6533d195e24df. 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/TWAE31901654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6dcdae3bd884682efe46677e7dcb742e983558ec541438526542342ffc7656f. 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/TWAE31901604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a5e2cbea90c55b421202656038ebbc3968c0e4b0df2733ef00d67fe0277cfb. 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/TWAE31700273.