Mary Hopkin (born 3 May 1950), credited on some recordings as Mary Visconti from her marriage to Tony Visconti, is a Welsh singer best known for her 1968 UK number one single "Those Were the Days". Sh
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b36ce5cef520b998745ec18e1a2a8c15ae8b908704f56e26f274aac8866703. 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/46f5d945-3bd4-49e9-9ede-d098d5b95122.json and https://artists.proofprofile.net/proofs/artist/46f5d945-3bd4-49e9-9ede-d098d5b95122.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Those Were The Days (Live In Paris, France, 1969, 2024 Remaster)
Post Card (Remastered 2010 / Deluxe Edition)
Lord Of The Reedy River - Remastered 2010
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa681764dc1a093cf868ddaee1913168aa3c1640aeac434b69661f075664708f1. 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/GBDCE1000055.
Happiness Runs (Pebble And The Man) - Remastered 2010
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd689294f42addc020abe45736fbd66ccdcc1adedddf9c04ceb4b2022affab6. 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/GBDCE1000056.
Love Is The Sweetest Thing - Remastered 2010
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e70fdd18769f5ffbaa175f2f929ece2adc6f40efa5dc40806164f9f0a6ea695. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/GBDCE1000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e31bda7c67c57242d04ccdc847fb053db03ed73b457021355b894aa04bbb74. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/GBDCE1000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3a102d6c0680b8d455703edc943c3bf5178e0ed84062ee91df970e3bc66564. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/GBDCE1000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c3a221ee5c2dc7b78ce551b4828121f2cb2537e31552bebc60b4bdb5efde4a. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/GBDCE1000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d797071a6ebcf95bd288eedbcaf1753d893ed6e74683e1d24bcd83ee147c381. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/GBDCE1000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c695fd8347d4fcce624b1a0a5c7935f77a6a22b6a48a0b262e4867e521bfe9d. 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/GBDCE1000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92adbde6432edee2e6f8f572ef87e641d903adcfa185d4cb8d4deff74807189c. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/GBDCE1000064.
Someone To Watch Over Me - Remastered 2010
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35a8cae1eb601b2572f468ef344bd80ef1a0f6152c420718a784e9d7a4607e8. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/GBDCE1000065.
There's No Business Like Show Business - Remastered 2010 / Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf187505848fe9de000c285dd08a6049edad4bcc11e5a3ab5c73ddddb9b256e64. Chain 2 (Bitcoin): anchored in block 957531 (2026-07-11T06:55:18Z), 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/GBDCE1000068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de3ecc12a5f71aa12768c38ac8f50f207ebd214a473df479df3ff6a597d3a7e. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/GBDCE1000069.
Fields Of St. Etienne - Remastered 2010 / Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2bcd0486041fb1b42296a1264b90ce90d5a10001e93e824b38437669c721eb. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/GBDCE1000205.
Post Card (Deluxe Edition / Remastered 2010)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a447cb18c779245cc7cc2b639709472fb05c62e737c78a8af2c51446d9a0683. 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/GBDCE1000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29175d00876a6928447ec0352654a2488f6778b4e5fd42bd4cadce55caaf4e0a. 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/GBDCE1000073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b8e276056cd8294747e029549a6352168704f3d4dcadcfb0e343e3287819c7. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/GBDCE1000074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf187505848fe9de000c285dd08a6049edad4bcc11e5a3ab5c73ddddb9b256e64. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/GBDCE1000068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f52a2a05061c1a49d33f3c414eac3d6429c0ab96f7b91410b7da22b752c16e. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/GBQWV2302003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b2958067aedfe7512b5e77cc4d21ccf844ab27d1d2d6b8fce06bbf45c21e94. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/GBQWV2302015.
Earth Song - Ocean Song (Remastered 2010)
Silver Birch And Weeping Willow - Remastered 2010
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa102da4169cf0baa8492d9f757b752813dded76d94e70d1a6154360c38584404. 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/GBDCE1000132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59b42d59be956821e9d943570c8b30e6abb38c6a69e082908a5e35c03991e1a. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/GBDCE1000139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc576427fca30690bcefe73406cedf959549380abadc42abbdc0e3a43945de44a. 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/GBDCE1000142.
Earth Song - Ocean Song (Remastered 2010 / Expanded Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187ea4529cc7420cd43b1d7625950c22106fc78931794a43eac4e78721470b4a. 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/GBQWV0800304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7b55dabda64b1e3d8360bf6b34e58acd1174fb910a5c426453ea805ba4dc35. 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/GBQWV0800309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x159b5e78dba06d4c16c5f87bcb6953d0f06c4b1f02fdfb54a9ef7bdb0bab0326. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USDEI7704266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12dc11cfd503eb2e6954d917f45040296734aa75da1b5cfa72cd0dc6bd66e999. 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/GBACC2009001.
Live At The Royal Festival Hall 1972 (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824755d8d9b3bf8cac9e3d5b1de9bfcf403abef77db656a9f6cec32f0aed8629. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GBQWV2101006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853e66ef6e5574a28d8b1af044db2fda44b3b8f76c9e7d9ef32029c7c08c61a8. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/GBQWV2101008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c7d26c6d95efc70b299fd9fec5709891273a0e1e572e9d712d15e5acc1473b. 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/GBQWV2101011.
Goodbye (Live On The Ed Sullivan Show, May 25, 1969)
Love Is The Sweetest Thing (Live On The Ed Sullivan Show, May 25, 1969)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4423e969fbece5a7f122f193e325a6849bb1841654aa0cae1f786a483aad61b9. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/GBQWV2301003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1866aa47db6d7bfc2a6ec2ef5939e8fb7071e727cc53148a09d97606cacf69. 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/ES64A1056516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77cded4e8a65a2245020df402d50bf25ea69bc1f60669ee241f2f04e1014381. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ES20I5028701.
Come And Get It - The Best Of Apple Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4849aaa78cdf07cb1175fe4e05ec37e51dc3a7712261a7427002b10dfc4822ca. 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/GBDCE1000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11de9efb1f4f0484696f9696c7b13498768680c940a982c623654394dd034639. 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/GBDCE1000006.