Samuel Howard Ash (August 28, 1884 – October 20, 1951) was an American vaudeville performer, singer, and movie actor who appeared in minor roles in over 200 films, including It's a Wonderful Life. Bi
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 0x2a65e698a78d2d97c8822c79dd392c63926a4d6b98f2dad4f327bbd7f0680213. 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/17d5616d-7ff9-4fc1-b67d-de432e725efa.json and https://artists.proofprofile.net/proofs/artist/17d5616d-7ff9-4fc1-b67d-de432e725efa.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 0x984ae55f817d73a593999c207ce289d67f0d3a79f7185ac8d4062165e77171fa. 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/USUM72016704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01505449b5ce9a79c85e380687bdbc70e2807f2e0a3d33d811ed457b548b70c4. 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/USUM72015316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30632e0ced721770a7444b37bd40d4980eb7994990cc9a017547d6994e60c523. 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/USUM72016708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3762bc2cecaaeeebf7a9299a7f9213f52915b0acb7d39fa582633bf33e5f94. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USUM72016707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebba881d8360399fcf6cd769aaa2398314438bb0bc53124cf86872c7e60251ec. 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/USUM72016703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c76460abe8722408ff1a3e402600bd0d5721f75550272dce0a5b8105ba2c9d. 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/USUM72016702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff7701e10ab78a6a135ac2c458b879be92a497b3c1aaca8e834cb493c9d78af. 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/USUM72016705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd07cedec2cb9f36aa6a3741dc6bdd7f4d7f86f59f12814be441be70ca9ce8f6. 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/USUM72016710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916582bc217cec4b7eeaed6b0343c3205c2632627e90aa5324eacf4d8adef858. 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/USUM72016700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e590baf49f82337991fac846787c58274be1d94269c63853dc5836e14a2d0eb. 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/USUM72016706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e42f3236f7c72e205c3bf32cea67e8f632c704c6997716fda78ed95a9682e5. 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/USUM72016701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3797a452d0b1809cb9296409e960d148236daad38b7abcc0b5087033013117. 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/USUM72016709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6b27671e3f855a77aac9a3e60dad89db6a284a8ebf14b50b40daa1c381327e. 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/USUM72110683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f27fc9875cd4e880e7fe7227cf779136cce9b836c4343e827db6f85a6083833. 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/USUM72110685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd0194fbe700310d536ef066a2ce8d1f5c5bbe3b481b1512a1412a39678c67d. 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/USUM72108462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d0a9f408737dcc548bc1f2502e278efaa8893dfa72ebcdb248d3c21fdb2058. 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/USUM72110684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c02b7c27025fe8319c905143638e78dfcf722429e57ae36ef5630dba66ecc5. 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/USUM72110686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f31ca55ce6d70fc4fce10ab74b0e386699ed44e17e98fe900335d3261c1cd5. 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/USUM72110687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30632e0ced721770a7444b37bd40d4980eb7994990cc9a017547d6994e60c523. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USUM72016708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bbe25ebc9dce1c1a46169d2437f50f49fe5cb00c1fcce95994d769431891fb5. 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/USANG2251325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd624612f16b900a20f63634f0e9cd6584c6bcff0fa4c3874cee7b647eb7b7a2. 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/US3DF2166237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d28600ca9fef8968f5557ee91d8dc2ae91b0ad0a6aaa32dce7c0b1ddae1b4ef. 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/US3DF2245857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bbe25ebc9dce1c1a46169d2437f50f49fe5cb00c1fcce95994d769431891fb5. 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/USANG2251325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac66c08f70dd09fc150744005b1c7fa398159747a7bcaed9ab7c01c761008ac. 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/QZHN41974366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f76f00667c7c396cf308140e418dbfbab2beff8985404c1177d140ee9de5f4. 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/QMTND2300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6b955adde0fa33e1cee1b22eb3ecedfd2ee10608f1024370ec6d295f4d1c49. 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/US3DF2233703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b1dc94a825224356ad17796acaf7ad7500cbc0964a9617c6fb1c545459220a. 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/QZFYY2080188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255e4467e75a381a4d7b28dc83cab85232db5f6e708b3afae211b75fa4e1bcda. 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/USM1C2001431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa780cbf5890a3161ff657a92fbb9dc02b5cb57b82145a3804958bedd2bd101f. 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/USM1C2001430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6216f0f272423c2b169607886e9a48ce5efa6f31d8ff0f66ffe38fb78aaf4c7. 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/USM1C2001429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c12877d336b838a11d98777e2b75079cd120c6ae848fb9d2c9f3a54b0df6de. 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/USM1C2001428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9b382e89416356e390b7c9117a55e5fa718bd55e710e3172114c64c40ec933. 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/USM1C2001432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45077557db6e08c55fe8379627916899d22e8714ad6471562e2c6c8ee93c24d1. 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/US3DF2457930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b5513ace02408865838257ae8734d8505d0bc8c0b8fe7ca09c01d590c30adb. 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/US3DF2457931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b9287e34ca814de15b7ef817fa6cdd469ddeaf95d3ed6abea79573902147e4. 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/US3DF2457933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab676133cc21af47a14ace8e14e0a3614b2c469982ff8aa94fa023ed9634ecf. 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/QT2SZ2400003.