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 0x5e959144b2d857ed0b2878f9a66bfcdeadce40ba6d8b94130f2a98c4395bc70d. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2659d9bf-62f5-448f-91e2-b9edf5c86fe8.json and https://artists.proofprofile.net/proofs/artist/2659d9bf-62f5-448f-91e2-b9edf5c86fe8.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 0xcd50adc1e9060c568b5a277c26deed2c1cc08bb4c535c007595246f420c04812. 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/USCW61204576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22c68a730f3e25d91dfdde1d5814168f0d05bb996a0431e2d290909dfdf3f24. 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/USCW61204577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c0c1daf4098cd82f451a3ba2da2d793c820e6831e7cb2a0eaa699177bf310f. 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/USCW61204501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f49f13cc09d7c8361d081fce914251d1cad938fcbd73a70e26b4cea4fa9cf7. 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/USCW61204536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43aa248680d75c4e6682124848f3c7c4306083ef8b112b41ea2564495087da62. 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/USCW61204502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca754f165f2e04837f55c6c0dc01c4b29d65b677900a7561544b9b48b67f9d1f. 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/USCW61204519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c98b66b195f16abdc95cedd9fb88642cdd560f2e73f5c0231504356492ce42. 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/USCW61204504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a0dcda6627bb5c2c115d88252448da1d109772e6d19d1f2119d25d0b6cbea0. 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/USCW61204541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76094a92154cf847ff2aadbbbc36c2ddae1ac613070aadf934f72052f18ce908. 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/USCW61204507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775c1aa4eda0e3876941711c74adc221aca47d5629e9b41a9b793fe0d7238a2b. 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/USCW61204524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e0a70e5dc741216c36d74d4571597907eb91dee179b9d25073869038fa6037. 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/USCW61204542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f0172e332896cd9a2d762a4de7102ecbf68396c2c3cb17c1c22b6e9dc15385. 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/USCW61204508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4c2d643575eee9ddb5770637566efbc11bf8c3715987edaa72fe94f962e5fa. 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/USCW61204543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66058c748497c860ad206ca650b31ff66ec2aa12c4a4b6675647276c05ab3fb2. 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/USCW61204509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227e9036174cd25b98a051e361592b6ada2220d439cd39bf6c45acef76b0e3c4. 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/USCW61204510.
Been Loving You So Long (Don't Want to Stop)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2095241289fc6ced707dbe5b819ea2a3c23308678f876a5a9a1f417b77f776d8. 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/USCW61204527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25ecd355c7d7d84588c380d1376b32fb0cb62447cc6a8517bf4b056cdf20819. 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/USCW61204545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb4d06136e4cc1a17879b403fe025db1908a3724bc0f535c9012d8348c61836. 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/USCW61204511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5c7a25b1f86466f47db3e863821c658581be61b1c971075baabc0c04ca11be. 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/USCW61204528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068926cff05dc5f6f19865c53d42d74076e09a5e03af0e4dcd28854e39197e3d. 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/USCW61204546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a54e3e8bbc549e0df762bda7de6ba8f991075e8971d413b8d7270e8c4dcc64. 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/USCW61204512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d87ac787710d94d59c8ec1c64eb6e8574174f753ae02ec4363cd93123a5800b. 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/USCW61204547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2549351468adf8d839b07861ce263c369131e76f97b006b448280fe6a3312628. 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/USCW61204513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9604542b5004525c3d059899e0761cfda800933d81f2d1adb0bd8456fcf2666. 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/USCW61204514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972d4f6a377e1c5080411b4ee3d52aaba8ecdca26b01e5e9373117fe66149732. 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/USCW61204549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e961b7e065259a268fe7852f697cfa8fcb83f8f89e432327aaa098d96c268cc. 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/USCW61204515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf264addde77ed8f6dda95dc6982f3d29662a414bc2c0d191b7687f9d1f98cf57. 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/USCW61204590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488280cf82cb97dee92bc00f33fd9ec5641f23f2ed0c313503d39fa61cf4d014. 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/USCW61204516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe041409f9c3cd6645ff384d2ad0e880d4f3e8cafff7a0da359cdd85296d51854. 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/USCW61204534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b8b05e6ada1a300688d94e82d956764d2e45fcde26d8a5ffdd33e433a34b84. 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/USCW61204517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45a99d231f07b52e14967dbc501c75790b52ff7d2e7688043b82727ad2b66f4. 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/USCW61204535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4fca926574a0425ca0cc809d0ccc7c256b89818e9ffb522e740b0778f66956. 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/USCW61204552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca754f165f2e04837f55c6c0dc01c4b29d65b677900a7561544b9b48b67f9d1f. 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/USCW61204519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775c1aa4eda0e3876941711c74adc221aca47d5629e9b41a9b793fe0d7238a2b. 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/USCW61204524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22c68a730f3e25d91dfdde1d5814168f0d05bb996a0431e2d290909dfdf3f24. 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/USCW61204577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69daad4ecdb6dc57b0ef94fcb84c390d33bed088e0d9b9b1cd68ceabc85cb11e. 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/USCW62454501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7cb2b8e4850b536c03dd25f111fdd86144bed254214d442e67f11c66a06d23. 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/USCW61204110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0d316299aad1ad5c0b0a69292249b4cc5df2235d77a21dd5cc555a47b21fa6. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/USCW62451001.