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 0x1839f2d015b062c81d33bbc99888b732ef84aa6bc787e8b114062720b9387b71. 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/c4624f2e-1144-43a2-b20f-22ae6124e82f.json and https://artists.proofprofile.net/proofs/artist/c4624f2e-1144-43a2-b20f-22ae6124e82f.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 0xd600235551c3b442eb59b6a0647df5ade6834dad798a9b120c04cb3267dff342. 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/TCJPA2415405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8d0d92fb1e6a5838c3e288976e200d0083df4af5760b010e7310c56bd50633. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCJPA2415407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477ac329779e30f9e2523c5fb9c18baf0b0e386763ffee4ca36ed18a0dec1fcf. 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/TCJPA2415409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bbb2deb54b6f48c3718c438066aca8fa773b65b6207b483a1c88c1fbdd0044. 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/TCJPX2390444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4681d5f19241b682f4bb623c698ffdfeedef5fba4c0ecfbfd4b70a136616e20. 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/TCJPB2408291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35fcdfcb126eba4bd30e42e87fda0e0d1faa07f4af8bb65cf0fffeb570527580. 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/TCJPV2377469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2ab254e4dc289d5b0a90892e4741610523157addd0b7d9426fdf9899247389. 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/TCJPV2377471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48233365eb6ce28fb9be8693b3593b4839024078155331aead5a224873aa8d91. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCJPV2377472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc352682ba4c15bd04d5cf8d9dc906e6845fe452e0d42815ca5cc9a4cfd8ba67. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCJPV2377474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba8b135040de99030bce9c9f4235bf479b5186d7ddf4840b589dfa556ff5026. 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/TCJPT2258557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68a3d0cb8b4cdc68966ad61e3ec1c478d7cf51d64c5424b7ca3aab0583f0a01. 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/TCJPT2258560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725131b5cb734af98a92335664e608de7af7917ee14ac8ee459ce9cfffc66485. 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/TCJPT2258561.
To the stars connected in July (feat. nayuta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e59e1f587fc91ce8c5a8bc25982a6fe3f67d9be3cef7a69d701c9825a58328. 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/TCJPR2275429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63d7ffb53bf0a1648134361f2b309cfa7bc0509ef89139cece2e97c69c6e8cd. 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/TCJPR2275455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe340e32fdc4ebd3354bd86c775f9dfca039cde4c952f1fc208ecbe6b07a0cbd. 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/TCJPR2275478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02a19d318eb64efc8d076e81058693ac0e986403809d0d2930c521e42b6784d. 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/TCJPR2275485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc248d2ba8cd79bb836b29b0cee10e518349dbbdc71cc8e638680d4c1d7f6cf22. 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/TCJPQ2126012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ad9bad42a3b971cbbcc009522ebb917a54ca99321e87c1ef7291f454e98cff. 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/TCJPQ2126014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221e49d0676d5942b87fd47a8e9c76f9d22d5ae725e8b7bb9dccb37282031509. 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/TCJPO2158673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a3b7eb56b0f9c08f60e0a904dd0cc9a1ec80c050d8b85c9c3bc6227ec9aca7. 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/TCJPM2099317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9687cb4bba50a9f17e6f43d62ab229afb1a9d5ac2b6a12e76c615231cfa9d2f0. 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/TCJPL2045065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa190a138b3f39f5edb1e42f7d57fb62f5d2449d6ec79501ce7684f14ba5ff6ba. 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/TCJPL2045069.