The Vanguards were a rock band from Bærum, Norway that debuted in 1961. Although the band disbanded eight years later, members continued to reunite for appearances during the 1970s. The Vanguards we
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 0x992dfd5cccbfddab2b01e694b721b9f68bc302d8a1ebc7a23d34946872895443. 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/6d692799-e05a-45d8-b508-63191b4c337e.json and https://artists.proofprofile.net/proofs/artist/6d692799-e05a-45d8-b508-63191b4c337e.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 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 0xd37e42eacbc41c21aa52330c25f73beef3826cf234f54dde4cd567c7bfb76338. 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/NOGTA5819170.
Vanguards Special -The Vanguards1963 - 2003 (59 Låter I Utvalg)
LAMP Records - It Glowed Like The Sun: The Story of Naptown's Motown 1969-1972
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd449d5f00b1a86ddda370f82a7d1119ac177fd65b9e7fee8f801a86ddd8c8a. 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/USA2P1943583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fcec722b9a5e043aacb7ef5dad3e24591585209a23a927a3698d4ababbfe013. 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/USA2P1943584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8f8f098480aa03210554377e2cd2a0f899b0b501df2bcbe2999056b5bc9924. 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/USA2P1943585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb201157d029fd0317a641f2798f00c2eeb645f2af4d7d8d9d574a454fae8ca. 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/USA2P1943586.
The Ground that You're Walking On (Is Mighty Shakey)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb10b44051073607726e526ae2b3ccaffc38e74c9f1ff8b17a797c47ee3feda. 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/USA2P1943587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d15be36ab61441a8099c11ff2794255118d933d14103fb3db85093ac66a615. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USA2P1943588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc006bd80f8334e2eaccc74c3c9138eb43f162d4aade36753950c1100ac5f3f. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USA2P1943589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69557f4bb70cc90ce47998be004280dcddfd1d7b13886f9a380f364ce612fa1. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USA2P1943590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f1a48ac18683c70d06757cd4b3e20ad8a17f0c9724dcae271123c255683298. 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/USA2P1943592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63391c62364f720439444c7baac91c8dd3e947d0ad3d372352a26133e0e5854c. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USA2P1943594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e124b835639f3448fbce89234a197f560abcb34e1cdf2802d5243e62f6cd6c. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/USA2P1943595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9638dcfe1388df9496b3fc93eacbb2ef76d683f333206049c278280335d66223. 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/USA2P1943596.