Tom Chapin (born March 13, 1945) is an American singer-songwriter, storyteller, actor and television host. Known for his ABC children's show Make-A-Wish and his children's albums, Chapin is also the y
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 0xebe6779a681b4fc99491001c749ce9af66ccd075311f9f9dc091c2bf194dc72c. 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/6d2a4aa5-712d-40d0-8184-b122fb4bc1f7.json and https://artists.proofprofile.net/proofs/artist/6d2a4aa5-712d-40d0-8184-b122fb4bc1f7.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 0xc842f5612130e21cb24a2d0bf12c94bfd9c8f760ec5e14cf2adb219402e60826. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USSM19703497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce33104176e526d60248644c28c6dee6c444f174a8cd1febe15f41aac0ac0e9. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:28:42Z), 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/USGRQ0500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7294b5b055763137d78436cbda7e00a5e7bea74e05014b5b709ff1602b9d2ba0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USGRQ0500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07dcdefbdc2f00387e9a5f13b50d9f5c3eba85ea8b1410b455a8c0198584afc. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/USGRQ9200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d926acf289682253d1984ca34d48c11dd311a6039e9d94cddd194a277abdb33. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USGRQ9200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbc8bd4d13e2ed9a4ed531c353c9fc2e407cc67153a3d2bfee5bdabb468d14f. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/USGRQ9200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6731f448858a091701fdb8a6eb680dcfecfc4b32024feb87424230e3ae888dbc. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USGRQ9200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0820fa2a329b402789c20572cd153e8ee48d126f6a8d29e108d14310b2f43a0f. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:40:46Z), 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/USGRQ8900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad473a38ac0f1f98e068e4c50bc43f8260cda62ca7ee9e864da72efeebca877. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USGRQ8900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fadcb5c0f7092ab49c6a037a4c4a9c47c8800bc99f53b52276b1da14e4c887. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/USGRQ8900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c89a579e3da71887fdf0d6883c43c28cde6c95c34d1758edf7918e191f50363. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:35:48Z), 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/USGRQ8900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab832bb29e0e6477d70ac584ba9022eee2c0a3330db947a7fc75c69c61d1f747. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:18:42Z), 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/USGRQ8900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9cb408cb1c2b6be74f150fe912c41b159fa5b134390c2011599da14d4fb8bb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USGRQ8800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4793f4c958c3c4c62cf005f641ca78cac5cc3b76ac9b0bbcba405da9f74b6a. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/USGRQ8800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e75068db7a71e8dc3fe7649d81b57ee8bdfab28a6c785674ddfbf41f71a393. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USGRQ8800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff659788012941f82dd8bee51ad4147e8656b1b15343dd885fc62535516b1d8. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:38:19Z), 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/USGRQ8800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20016c4e44d000b4b1fc3fa42e631cf31d389b0ca37524da5e8b3da0960bf8bb. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USGRQ8800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225903bb854fff382197c8eabf36526fb764aee9092fda8c49871231b78d8eba. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USGRQ8800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7160ae8344ceb139d825324ac18619b634b2c071309dc73f1f86e66c6fb8fad0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USGRQ8800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41205038420b2629ec090a7df978f79fe025daedd8b0ba3564deaaf967c6ce4. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/USGRQ8800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7357869e6958dcefcc9f038449c6f31ab10245c301a429e08492f366f05999. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/USGRQ8800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea644c45ae936680ad39f2fdb92b58180438b2fef6dfd40e8ac681a3f61e1d6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USGRQ8800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633e086653e629e9761cb642fb63ab20023e223229019b8c6bb77472e800d2f9. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USGRQ9000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d61fc5d925aa550199939d8cc5de7fe328426656822ae230c159f3df96bfd0. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:21:23Z), 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/USGRQ9000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf579ec2feef6f64c2aecb18d39fcd931bb95813ecb65cb4d19a66fd31aeda2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USGRQ9000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1d9ef6bc09c865390b7f904b85fc9a8c603f09f262921b42ef3384cf1f521f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:47:09Z), 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/USGRQ9000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeafa75d06148f72543b3eb2810c43aef8dc150d3735be7b21b2b91cd6f9b258. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/USGRQ9000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094180eede6f1c2a47adc99808e868641c67546a1a29c8306d5cf1c970a1103c. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/USGRQ9000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351dcc99d36bb0f44f2dded599208fe99a05eeba538f1d9cf1400a6098ad1b0c. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/USGRQ9000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b9bf2e3822d6327d48cfcdc0c7a99c7d077ae06519430f607a4818f28cbc16. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:44:10Z), 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/USGRQ1100001.
Pioneers for a Cure - Left My Gal in the Mountains