1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x01af96ed8e0dc0ac97828dbe3fc149dd75881e158d0896632f91f99bf2d7082a. 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/f9e7d92f-7abb-41ac-906d-49f49cfa9224.json and https://artists.proofprofile.net/proofs/artist/f9e7d92f-7abb-41ac-906d-49f49cfa9224.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 → block OTSBitcoinBlock must exist at that height 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 0x05a782f23fcbea3f8537fe6b9e474ced94de9c8e029366ff3edf584ecc6e9ea3. 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/HKD012344342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfac969e441704a7d068a76ad246b928e54e73a6cbe88750b9ee194cda7bb70c. 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/DGA0H2406829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0034673c2eeae0f4cb9809a433588b48c3239e0a584ff04ab83a835236c0bf. 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/HKG732424024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa422cf76d547e57a76c75ac99558be15e348a41ff9271b37ce173282c1669143. 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/HKG732412829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5201122ea2dbbbd56ef6ee40dbcd1022656bb116687c2b44ff70f2a3872c69. 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/HKG732406275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd123d571adc0fed109cd4ed638c062b6fe31aaaa0568ee58a0a34653c46d5f06. 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/HKG731697973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1646bda6faae125c2ea1006866142b3a5f073cdc3da3504e8c4af75abd2f3fc7. 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/HKG731682804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290fe31dc43cdf4defc90499db521dbdbfbe97b76701e4274f5d1e227321e8d2. 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/HKG731682803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691579f9da8728c4ed4d5a6c7b9e2a5282ab96ee43a030206d7d9ae4874f14eb. 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/HKG731682473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815124de6bceccccddb9d81e98de502d7bcb7745d1b0041559507d678bc3aa67. 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/HKG731682472.
你是我曾经拼了命爱过的人 (女声版)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797c583aa70930f9933090c796f8f389b741a5fd9de0bce36594c3870885f4d9. 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/HKG732360964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb891343cf8b0f2979dfd2db328da61da27398a156573ef3cc43dd23f379ae1. 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/FRX872321431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ae717a0567dda977e31047cf9ceb99b0817d28cff1a2e8fceefe0130166773. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/HKG732343505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b50b616b4556011fca5cac961f0d55ea1ad1c9e3b87bf18a40eebf160c0d7ba. 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/HKG732343501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a104e9f0fdab71c4c3ee251251a67f8a47292dcb878409172fec6f7b71b35a. 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/FRX452397006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de892af9bf8a7d7010da27e902d3b7fb713fd25c29d76fbd6369aeec6018bac. 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/FRX282381573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e9afef31abaf327be7dbc8782025ffc96e430b91a55729a4afbad59ef5b176. 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/HKG732261983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a2999a50430d3a462d3e1374e59abf725d96e3097a8bf8c204574e6a554716. 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/HKG732293423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8120a43f4df47bd69d62d7641441294f9c30d10b0928f00bcc4dbc403c7c8b7f. 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/HKG732266318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ae9ce86af7396c990876fd40bf67e908e722741024dc530cf927be85b7e718. 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/HKG731770007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0299a9217a031a89c3b15a025be99bd8ffc4b77422921bf87317928fad8c443e. 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/HKG731718353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e08cb361ce59540d22f1737cfce01e8edef94259158f4ea131f4b433d46b0f2. 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/HKG732109469.