Atta Boy is a 1926 American silent comedy film directed by Edward H. Griffith and starring Monty Banks, Virginia Bradford, and Ernest Wood.Munden p. 29Progressive Silent Film List: Atta Boy at silente
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 0xc44db367b6bd3dac42afb6adfbfa894a702d299ed24dabdfdec65c92742ef3d6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64916779-7a54-4754-8bd4-463e5b3b160a.json and https://artists.proofprofile.net/proofs/artist/64916779-7a54-4754-8bd4-463e5b3b160a.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 0x3c79d6210cf34b640d7c985571d190e775d974e3e94caa6bfb7e671e5b029dcc. 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/QM6N22282479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d92e01e82ac0e7ab6255bfc2354c8e1747c8a34fa7aa889b717a1d9f32ded3. 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/QM6N22282480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0288e337979f153a7eea00055b8035270289ac748612913d0acd7b16b7ac634. 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/QM6N22282481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6e0b7c03971b9a0da3c286429818c5c86b83a00483c687a461cbfd7747c598. 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/QM6N22282482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169cb9cce133bd4bde7d5cd6333284954bd28ea37fcbe0e9eaa3ee46d6dca49e. 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/QM6N22282483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe392ff31e924995c7708cbd6baf1c52fa913b44bd7317f6ac19a3cfb4da25b5f. 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/QM6N22282484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32286ca1fcef7472c4bf5268d6d6c4aa51863ee98d9d97475eae0452fc45e5c9. 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/QM6N22282485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b91eb873e35fe597a3974609a01b67bff8c1bba5125df5fef722342d08775a2. 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/QM6N22282486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a593f2bae547be2b47bea7c0d1bf6957884751ea9eefd46039a2b5603fa665. 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/QM6N22282487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d229abfadbdc6ab86b801288ae36dd1f98a4db54ac51d9d7f6997b9e755bd04. 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/QM6N22282488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b37955b8cfc20b3dfbe354c6355fa3b05f3ffdaef1879e2e073abf1d9a6071. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZLCM2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3daacdf4bde96aad0b19419de816a52107f811216f6282368b46c66a23badef. 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/QZLCM2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559c8c641c66e70a1b57fefc6198802afc852cce545866b3dea2af246061223a. 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/QZLCM2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f53b4f5db4dc2908b2db883d73e36e648d5ec2871da0dc9d28700f515400705. 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/QZLCM2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3968726c51cff3a1c9652e88e6cbe9001bc3f6b60fbf8f2a3e942eb3b476e8db. 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/QZLCM2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240b5c198b9048aa55d6be0af153852f3bd0cd12aac2cf357370d74b0d545441. 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/QZLCM2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56b4402e5e21a06904c062b42eebe36f970510e35ba2f3995fcf1f0ba3f29a3. 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/QZLCM2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f04d133f2ce909a8a1f83e03ae70fdf909477257eaf301ce9cc8571108cc47d. 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/QZLCM2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7756dadea96f0e9a9fbbfa161f854b4e11a7f59d8ae14a8418bf5873c5344939. 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/QZLCM2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53442d9e2ff57f856748d432e31284abd22dc191801e5cd1aaf83bedb66f89ed. 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/QZLCM2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83176995dde6417be6e629a346f0fc4b08ede0b1478548ab36e203239c1572e4. 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/QZLCM2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51f3e40d8d371aad4cf873d476b214ab5303110c5b7be868782c79762aef102. 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/TCABL1202264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce18bbdf9893b996ee9234aaf05a94e42f50e844d76ea7565a3ccec2e19806e. 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/TCABL1202265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd376adc376e25f117d3513d50dc3b19a8da22815209412439f60fa0024f9868. 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/TCABL1202266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a19712199059cb66919ffa103757d3e6eba957889891a54466170dd350016c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCABL1202267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb788178cf34fe20f20cc0acaec22579d648fb0d6c95665388cdba46d63132ad1. 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/TCABL1202268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d6ed80056d03b997b52bf3212739cb35142fdc764711c0a21bf369c7f6474b. 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/TCABL1202270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02de0e9a2e038e37969d86c1310e13ab002e76b64ec33f13fa0810e1a5f9c28b. 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/TCABL1202272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ef79aac15bdeb7289c7c7cbeb5dae382acc32a21f1f0cc9a4bee5474a4fe5e. 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/TCABL1202273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8095df5ca972138e7610488181ff1236f4f83e12f3001fd1a72c820b6bcbd01. 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/TCABL1202274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e37d0bcc6c2f56424f4a0b8f1d849161505ddb10b3a32cf9e5573010a8a0ec. 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/TCABL1202275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49b491ea894f68c1ea3aace9798f70bccca44c1870984ccb63c83eb08a29648. 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/QM4TW2129210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4101a47534d2d809d0eb669e8020c701fe74441da5f3804cc96288e8f3f4bd0e. 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/QM4TW2129211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1ffe605f0f668e3ce634257294db7ac65de5c3e771945f147b0590ba2eb95e. 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/QM4TW2129212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6285b07b7417dfb4883a6ed3d5460b4410d6e068edd15949fee03e0f73d0d41. 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/QM4TW2129213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d8ef882d2d9097a8211d5ed919eb5ee48f73cbe727a218d38d7bfe7100f075. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QM4TW2129214.