Barbara Mason (born August 9, 1947, in Philadelphia, Pennsylvania, United States) is an American soul singer with several R&B and pop hits in the 1960s and 1970s, best known for her self-written 1965
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 0x585988001eafec8a455607805e479aff273eb82f678360bbd6ce80ac97e8f967. 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/ad1ad40c-9ec6-4245-aaa2-a98826c700b9.json and https://artists.proofprofile.net/proofs/artist/ad1ad40c-9ec6-4245-aaa2-a98826c700b9.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 0x8e6074d98beede91319e46e1ca7c4da0f71c65fd6bf43c8ac665d9f713e1d514. 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/USJRC0304002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded45a696646f1a57145442916282e82585e7583b321ce9848398128672f1a31. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USJRC0304412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cca763da892529bdaf681cf13a48695d471629064157638ad59dd2663fab31. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USJRC0304007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3122e370daebaafe3b51ae023a747f408c66918437ad548a81392b46df20001. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USJRC0304010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb836d3258078a6104992d7171e1939eece791905790bb0f6263883a9cc1c128. 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/USJRC0304005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2e10bd8452352bd607fdb11baa6cbf5076d3d0b6852c39393aedd33ecde933. 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/USJRC0304006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56372fb46b1b181984c2982a53bd57c00ad4dcf531af7bbc5c4423f9281c42de. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USJRC0304004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3778c0e6b89d0664c83d838e25956dabd481281afd0c8e388c16ccf50ec739. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:58:39Z), 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/USJRC0304008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6617490bcc44b1b54abf75bb043c16eb90fb6bef650d1d4323cdf8551f76d58b. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/USJRC0304402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc186fc3c22c6d8afa7e5b58aa1cdf7232249ea73eb45f8cd0cfe17a61e912076. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/USJRC0304407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4880bf1219b709225540be04d0b4604a6523c7f6672084af6ef107826275b722. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USJRC0304408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e889d0674accf1648ef5eee92e792828e58898f7080c16c2eeb97ad26dd672a. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USJRC0304409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33582e1b0d7ad87d575a287d4e4707e68c84ef00f98c4d08335a428e794e006. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USBR10500093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9e1f4972c4b14dbe48962ffafac339cba4d532c8328b3d521bb68550dd3c91. 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/CAU117800546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf0fba67a80dc77a22e0075f055bdded01ddce1f3e2a17b0dd7d37136e5b7e2. 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/CAU117800550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc35ffa81431fb751d50afd5856eeb9e2f8be94d7ebec73fea15dc4c2067a165. 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/USBR10100046.
From His Woman To You - Remastered June 10, 2001/Album Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe6ea7bc81ba2ba9b8647d1f0ac590dbc96014fa6169d97685cee62d092985e. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USBR10100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397e0b065b2c8b9194c41d2293f4c279b8367b3b5af2795b492572cada827175. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USBR10100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe403286735b65dd09ee1626ed8b0f79708e945885c61dc6cbe7b01c0eb0cc7c9. 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/USGZ20600386.
Lay Back And Funk With Barbara Mason - [The Dave Cash Collection]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f910148b16b1a2698128ea1e27de3a288866ab191e39437897f2ea33c7a32e. 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/GBJUT1011225.
Another Man - 12" Vocal - 2012 - Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87147ad8c930212bf6ff7e6e111eedd27840cced1755246c369307270909a056. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USZUR0601012.
Best Of The Essential Years: Barbara Mason
Best of the Essential Years: Barbara Mason
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad44db7860dbf106024c014140ecad9d365c9b02ca4ecc4fab7571062ef4b1c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USGZ21353184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af808e0a008598506a1413584a1175e822dd5a350994c39d8f7b461c92eb2dc. 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/USGZ21353185.
She's Got the Papers (But I Got the Man) - Radio Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d7529993dbb308dfa51ae939efc0fe83d4bc91060b82919e9f25cced8dc6bb. 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/USGZ21353190.
If Loving You Is Wrong, I Don't Want to Be Right
When You Look At Me / I Should Be Leaving You
Change Me If You Can: The Best of Barbara Mason 1968-1973
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd81a308600a498719de48d46641bc000b0be3e143e462fad3ace4803a0f7c5a. 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/USUS11200428.
Don't I Ever Cross Your Mind (2012 - Remaster)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7d61dbb62cf0c8191d66d937b93e73b2ee31fbe0a468987a51f86496a95456. 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/USUS11200444.