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 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 0xd438646e6896e75838592aba257d0e92f29601cd198bbffef6eb6e55aa5072a6. 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/8870caa1-75b0-4156-9123-56ead9727c39.json and https://artists.proofprofile.net/proofs/artist/8870caa1-75b0-4156-9123-56ead9727c39.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 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 0xa7525dbbff3db9174046329543250e54bc541d5f469ec793a043b3bff3ed1673. 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/MYEM18700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fc9099544d7937fc51b923b35a930553d2109324132ea8fe9e30eeccda2414. 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/MYEM18700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c804859d1ba8e6f7ae3bc9bd2eec0f1801f429e5314d06cbf8c8eb0f24e485d. 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/MYEM18700069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387708b6140678f08f05a02ab365cfaa7735be591fda6e43f9adb0ba592d40ef. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/MYEM18800058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dabdb6f9f4740c9bec8e2b33ccc2dc87d19d50dde443ec57e611be1422bba1b. 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/MYEM18700067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c61f897108357bcbf6d4887fbd01c2f0c87ca2c11e4f9e3f8a12bde1a0f4a68. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/MYEM18800059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcde21eafc7fd46060da641de715740c02d4a6e983ca649ed4534992774ea778. 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/MYUM71500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6827d56a9dc26e9bf1535426ed8a18b9a1aae0656179727e2c76a093dafb5f5d. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/MYEM18900069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7525dbbff3db9174046329543250e54bc541d5f469ec793a043b3bff3ed1673. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/MYEM18700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd31d87ad909d30c77d294c87bafdee8d146cf9f1c74eff914dc1c913fec9a3. 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/MYUM71500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7dc487058f048384243842f0b5595892f2f4040f0e9d76744a8d5b848800ad. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/MYUM71500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dabdb6f9f4740c9bec8e2b33ccc2dc87d19d50dde443ec57e611be1422bba1b. 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/MYEM18700067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615ba77ad97afeb735674c4fdec3ae35e2eb79da6dd70338ca8851d5c0557ce4. 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/MYUM71500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c804859d1ba8e6f7ae3bc9bd2eec0f1801f429e5314d06cbf8c8eb0f24e485d. 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/MYEM18700069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fc9099544d7937fc51b923b35a930553d2109324132ea8fe9e30eeccda2414. 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/MYEM18700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d96036f5412e65dd9ab38437c2633fe96ae766f258160bcc5c0e29649767686. 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/MYUM71500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51084172052734707c292ba229dc1bc057c932f088da6c5e91aa041cd11b058. 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/MYEM18700071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64cf051f4bfae490e0faaaf2ce3164705c0a6767dcd9d8ea51c58f43d8ac71d6. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/MYEM18700072.