Freedom is the power or right to speak, act, and change as one wants without hindrance or restraint. Freedom is often associated with liberty and autonomy in the sense of "giving oneself one's own law
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 0xaecd77e54564865098a1721c00f100e1d288d3698cb61b4a7a119ad0b2d5a34f. Chain 2 (Bitcoin): anchored in block 953722 (2026-06-15T01:21:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8b0b0329-adda-4e22-9897-a3de0d3a3ec3.json and https://artists.proofprofile.net/proofs/artist/8b0b0329-adda-4e22-9897-a3de0d3a3ec3.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 0xb19c33b86091d93073dfa62d4e550786a1dc01f067602dc4d0dfc6d17c64304e. 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/QMCE71300551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f673054b0ecc7fb3b8496c948ff0065b57b72d98edd8f46359c626f17319309. 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/QMCE71300554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72061f967e30aea91f43008de67f5dd5feb54ad0bea193bb55529ab05cfd49e. 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/QMCE71300556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0400439c65961e18dc28aedb220187a260857e511ed75a0f140dd7023e64ac. 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/QMCE71300559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a04da9aa22e37314cf4712bbfc89fbfead1730a8e6c44e2df29bf0aac7b2716. 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/QMCE71300560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d8faf82e6980b09810c287c71c382333ca1790e29ae4981e8248ef4027aaac. 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/QMCE71300561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a1a3cc6c549c9597040a1499ce783be8556b55c2381685edf9bb9a85a9f2ea. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T17:03:34Z), 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/QMCE71300552.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e98e3cbcb5438ab096dd30733e55f60b863330e28bd2c2d666effc176ec2fc9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMCE71300553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76eaa5970c9e99d8aaa629e4944f0a25c047d90784af55377c180e97d96024d. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QMCE71300555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180be6846c173faa620529871ce8497637e35d17c8982605ce539fd03ef6d840. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QMCE71300557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c4f817ff2cf27ea860e3bbfbb8cd12c9b8fadfd6d7f1a9e8f15887c4e61392. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QMCE71300558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6909b1b41491aad8c099dab25de681eaa4220c0b741e4195fcd6b962dea43c57. 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/USQY51515278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14080e116b6fba6af156fe2df9ac9351aa14c98659a397fe2cb7eca4775685c8. 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/USQY51515279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf223e996a94b3f7e5a633111f27df50847e95d70a23fd645b4b7629d738dbe90. 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/USQY51515280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffda22537b08a0b1beb6014557fa9219bdb70ecac14d93adb13c93b407df196a. 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/USQY51515281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a41c7369f1ac37cffb3788bbd76e5c728ef0a0a7c45d9dcc7ca27bb926b6a58. 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/USQY51515282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9844d0af40e1c9b6b47a070577b1be7d830bad9c545efe47e60c0ba55286841. 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/USQY51515284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53afba9d45f56cd2924522648dedda1cfc05b5b86217d1e02f5092ba43e4bd02. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/USQY51515283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f18df5318bf1e38ccc21442859434d6702240309f29dad211455da52d64959. 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/QMCE71301535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9295b3d26fb0555210698796fc0b11740bda165c3cc73ba6adc29d3ec41a2fe1. 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/QMCE71301536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0edf41cccdc3c1d96446527b0a7748eee30bca6c74b14a5cd168d34d8166fda. 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/QMCE71301537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa623b9f58aa2ad983b8764580e1e60626576d367f84e179c8847089ef32ecfbe. 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/QMCE71301538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1cd9128523618af45344da6c0d05658a44b0b992592324c47776ce927a6014. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:38:11Z), 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/QMCE71301539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7aaf5a0a9f7c71d30e3c7c7cc7b43953130a2d3461264dc051087b819866ae. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZFZ62475600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffa40819e33f7d2af9e28a5e1371ff59643e82371e7e6f94669c92ce3e0ba0b. 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/QZFZ62475601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd44b4653f81b9d67cfeee37c95093ab8cfcdd6ba66a35bc1ebd3e4d9df2747b. 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/QZFZ62475603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d023999eb34c51ae3fe1ddb4f891caad82e01f28a0399977ef219431925ccc1. 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/ITZB51810177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305bd52d9b5f3c076426a8a6b47fe52c1e74ecedd62a5a894dcf2b48b836cbd5. 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/ITDK91800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5814c6bde7efd74aa344da262bb90a3851d2ee238e7cfab0168829d595f8ea1. 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/ITZB51810154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b0dc6505e4d44d6b542df1e01576f37f89f0c8ee3544da7c5df1414c2e15d8. 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/ITZB51810189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76037bbe8b6a24eb79d90592e782232928214b6d79c1fd3845f267cb008cd536. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ITZB51810193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47eb9d2946496041eb371594e633ae248c1484e8f0919d26e317fed7aaf5724d. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ITZB51810186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad07249e0e8251fcd13e7e29a92fb7bdd87ec291afff4fa92783b15ea56818b. 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/QZES91874850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3372b3c53d84a99b3d66de9874bec34dc4451fe60dac449795dbef8b8e5c4f. 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/QZES91874851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c10a1de36ea32b1d60a308723ec74144d66fc4a6fd91b46b83c9bb4e2957c43. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/QZES91874854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c041d84cc832f2db44b03f75adb45c6c22e7652b8b6042465ca57f998f00548. 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/QZNB82008101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef071a06bf7b54578978a47c0447c5487c12f2971ec147591d3378d0a86ea5f. 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/US3DF1816422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472f69d6f26a4c863147c4c889c3c75a71f0c4ea9b9e123c42a6745a92580f19. 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/US3DF1816401.