"Sweet Mary" is a song written by Steve Jablecki and performed by Wadsworth Mansion. "Sweet Mary" was featured on their 1971 album Wadsworth Mansion and was produced by Jim Calvert and Norman Marzano.
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 0x486466dc745575d29e4f0560fce8a8846bbd645b12fd930b993e96f4bd4e150d. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e31cd420-3786-4a9a-82b8-b89156f633c6.json and https://artists.proofprofile.net/proofs/artist/e31cd420-3786-4a9a-82b8-b89156f633c6.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 0x098d7d4786267c9685d238ff2f0f5648204a5f385566cd8370fe7de6ee23fdb1. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:25:48Z), 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/TCAJO2563688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4241e31ae3a96f3e9a361ad34c4479f576cd2deda366246ad0520673c049da52. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/TCAJN2563619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86679ad6f3218e9d9f46de5c9e4f7b3db4c1f54ee7dcebcf32b04f51068530f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAJN2579595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80445eb46e5fecbd8a8ab927d9e7a76534ed73df6cd78b8d94dfeac707129662. 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/TCAJO2596770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd58c5f793d7bb86c45105c241c4c99a0a861ef81e7ddca693c1c9c19849561. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAJN2596693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf479ae5a05bb0cba40c1036e1b15d449c08b6b13840a493170430fa592d1115a. 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/TCAJN2596793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78bf0d0cab59d9614977117540b4a1c2a2fdba63eb421b45f9e4622056f8982. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:34:58Z), 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/TCAJN2596748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedee176fd176af891bf6319ecd300075b802a5ae6002cde40e76738188aa629c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:36:35Z), 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/TCAJN2596829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4e1627f50dcd7221fde3291c04d6cccbece368073fd77a512ca3b7ee31b284. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/TCAJO2596596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdddf0880a3e45eff490b61b079c678525148ac12141e047b056b72125cb4958b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAJN2596645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5bf7c49171e66d72a6c5042ad908f360e1d165a2003ede86b60ad611a1ca30. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAJQ2579669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdf3fdfed4f1d25967e2d665b681b4ab24096033edf6151469f6f11e660ac04. 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/TCAJP2579602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17135ff86656b71a42077875ced2b065dab74b6c7f047618559f1f7abc389d86. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:30:22Z), 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/TCAJS2534285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2f55964368fc6018539e79030c0bf4b31367d2ca0b08b04ee640720e5ad14a. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:08:29Z), 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/TCAJS2534469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632807b91b79f69b6f5ec4a2e640dd0d092d5a87a790ecfaca835cd09ffcba78. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAJT2534422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5fc4056bb4eac96bfb289fe2cd648a176716bd5fb493c94154a047c0d6bdd15. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:32:30Z), 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/TCAJT2534401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016670074b358b1908900336ca573e7bd74ae986d29450b474c1c9181656bc5e. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/TCAJT2534381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384a302ae8f5bb97c39a43df701ec5c830228653d93104c6771a1e7aba4dc580. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAJT2534252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b11ce0ca19255eaa4541f71ce56d89f4caa3785e920538faaccc31696a0cb2a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAJU2559131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3bac65a13dd4e2e148161ab891174f6be29be0876b31f0a255bdd5fc98dfda4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAJU2559093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb790a865ecca113c9376f80c8dbe3403b04027ae5902200258977658ced1cd44. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAJW2522632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad29a9133e1520fe163b7901943d1cdd69efcf43cb80ce21c47ca18e21c4411. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAJW2522662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3f88abcdb103c02993b1929ce897bbbdef3b5d2cd1b6a6c165dfc28f9562b4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAJW2522679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ed394706c55f9204f0a8da9494b44e0d423f2a624d14120cbf8ebae9e624c8. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCAJW2522702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801562b676ef785a5960d414fe8f328998ae37e378ab9d9b2ea2ba64670af5b9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAJW2522732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb93857b07a24c8fc78b0e768fa028ab04d73f2e08416ff7cd05dea9335ffb3. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCAJX2583941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5602b60c0a1b31323e6439c7f58f02b7d1dcc7274d7215eda5c0d2ae3efa9b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAJY2500382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f2774d40de58f5844f9df0c03aa1a67f6dce52f0cc4949f34ae114654ffafa. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAJZ2500625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d3b76d399926c839bb5895ad9fca5d08380a8f277bc1aeed460861657da226. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/TCAJY2558946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb1666365acf45a5cc6d464a2ae881e994c9da3793a388ee827194a2d7c2d09. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAJY2560415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e60a171f1b975e6d80924d0cc9fdabed30e70769a5badea33903c1b09da8dd. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAJY2560362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8e444731c53338d113975ebf8ed0f5a7342a8c7fb73c1b0d53d906a27f84a2. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/TCAJY2560383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168c989803c47d4c6fedda1992203ce7f91b44124c09bacee2d4cb9202ecc147. 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/TCAJY2560403.