L'apache is a 1919 American silent drama film directed by Joe De Grasse and written by Adele Buffington in her first screenplay, John Lynch, and R. Cecil Smith. The film stars Dorothy Dalton, Robert E
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 0x45a061217faacfb8d3a9680fc880ca28d229dc71a8ad7905dcd2cc85e8ad8ee8. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed64c0a4-0ca4-4238-b092-d2bcf2a93a08.json and https://artists.proofprofile.net/proofs/artist/ed64c0a4-0ca4-4238-b092-d2bcf2a93a08.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 0x8d77021851e01120786826288dec926f2f2477c7fcaff37689a6d75cb480a4d0. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FRR642302409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a9d4407fcc744c01b84b65dca63ddb01ab3f93fd663b7f7517f601eeb169f6. 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/FRR642300360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98213588156db79bf16d3767f416e486543bd441eb936b084310c2876f78b6f1. 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/FRR642300361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1186a01f596138d433bef6d42150f22eb984f7f13278ff27ec69449e6e4a2a. 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/FRR642300364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56205e1267c556a34452424b2f527a46c682e53a9a4a978f8c10382ae8f13b78. 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/FRR642300370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7583759d7121427255f27b81c4a5df61d37ae8d4cabba6b389649576e2c1ee0b. 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/TCAFY2143286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181e6b0de7021c67ae81d89e38f33c63c7dbcfa9664bc75a4334dc65361429db. 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/TCAFY2143431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d77021851e01120786826288dec926f2f2477c7fcaff37689a6d75cb480a4d0. 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/FRR642302409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6787227edd081f96c1d43f88e01002e6026b05b774bb93c0904933bab9c569. 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/FRR642302426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8616acb1a3375de223ea17581513ca7d3af2c388c1dd6023dddd883a382814f7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRR642302408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad064605ca952b1bd83b0e0f7094f80ca4761efa36f6fde6b2354046540449d. 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/FRR642302419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcaa8d18c7bcff4fdbe565833d6d7b4d514833705e32558f8e9032913133ff2. 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/FRR642302064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b37c4cea246d637fd10411cc1fc2858fbdd71e500224b4ca4147d86c6caf48. 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/FRR642301707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49005d6605908eb2aa8693bf45d834b5ff90123446d8542d7fa60f0129a0d5f. 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/FRR642301706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba6955d494584bc0fdc130908e7772ec2c2cfa3245796e3e636944d37f93d76. 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/FRR642301696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48872fc454fd384419c0cfd12cfb2701bfff6464fe92366959025da30f81165. 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/FRR642300665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73755294d139185190bf5684c1ba09c63d364ed5b493d8e33d5b95891cac4a5. 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/TCAGR2291869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c59b3f55e084109064a429b3344d2f4f44a2a917a2072bd98c867953d25b62f. 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/FRR642401505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00af4cbdfaf08775b7de25a6ab1647ca36101f064e2266534dcb7bed5047e4d. 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/FRR642401059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c59b3f55e084109064a429b3344d2f4f44a2a917a2072bd98c867953d25b62f. 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/FRR642401505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcaa8d18c7bcff4fdbe565833d6d7b4d514833705e32558f8e9032913133ff2. 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/FRR642302064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00af4cbdfaf08775b7de25a6ab1647ca36101f064e2266534dcb7bed5047e4d. 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/FRR642401059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56205e1267c556a34452424b2f527a46c682e53a9a4a978f8c10382ae8f13b78. 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/FRR642300370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0358318aec38b21cfde2d802a081e31861e88ca58cbe070458f20da0c8aeb211. 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/FRR642401509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9adfed0392f008d85d4443638d275e758a21d3b2e95aeea89f1975095f5b4690. 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/FRR642302159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a9d4407fcc744c01b84b65dca63ddb01ab3f93fd663b7f7517f601eeb169f6. 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/FRR642300360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65dd2c0bca4c5e9c81f1f47f5a9b1a21bd081f35f35f922d1bf7f44662e17dd. 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/FRR642302180.