Py Marie Elisabet Ulrika Bäckman Wennborn (born 5 July 1948) is a Swedish musician. She is a singer and songwriter of pop and rock for musicals and films. She also plays piano and harmonica. Career B
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 0xb35efe2f49dbe66c37113c4916a057a1adb9d120a27981093dd35bab81c2236c. 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/a0be5272-c5c8-4973-99d9-253f6af4f205.json and https://artists.proofprofile.net/proofs/artist/a0be5272-c5c8-4973-99d9-253f6af4f205.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 0xb2b62fb2517611f5e69aa47e9b1493e9a07c72835c9b027476ec6fb6ac6efdf0. 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/SEWWD2300301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9c41b478615894ade00958b1ccb85745ab23ccc7c1f81e72396a155c9cc778. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SEBFO8608010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08829080b32882ee024f2b1a0764f78df91e6693eb6ec7ee7de919857d5eca72. 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/SEWWD0600304.
Stad i ljus - sånger från jorden till himmelen
Stad I Ljus - Sånger Från Jorden Till Himmelen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb383de894e5b104350e9261aac441f073edbd10e04e8aee5651844488600e3d. 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/SEWWD1200112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a90c3361098808f574ffad29363abcbbdc950b8626e90fd8013d668b5a76fb8. 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/SEVCZ2100402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1e99e972234d4017b1d5de3e092318d3ccacec5f0a551cefd81504dfbae3a0. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/SEWWD2200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e1155fa32b6cc56daad816ba06eeb90fb87faacc62a0a4f36051634b83a00c. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:07:51Z), 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/SEVCZ2100404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1e2464061afc73ba55d8b2c148dd356a6efaa4e8ab46952f01cc10f872605c. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/SEWWD2401501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2151cfd25baaee764603f234bb80be187acddeafceaaa1f8396bc43cee8c70ee. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/SEWWD2500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2294f59c4e8184618b9a731cef79064941dc93ae468d4e242221c43f8dd36b3. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:58:38Z), 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/SEWWD2500201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851ba66d12b1e09745a68a4695d4c4c5600520804932806478fd6b0d4950d0fc. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:47:38Z), 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/SEWWD2500301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8b8b039662f2616b23dd2333e5196216bda1efdd3fbb7809513da50cd92086. 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/SEWWD2501101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c11a8427d4d5ac92b636be3de0e0e82cfb80e10798d0ce2091b050df014b3c. 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/SEYQH0900103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c0e4fee656434e88f88e68c52ed8f4bac98d174be20205b9e406bdfa6a7752. 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/NODGN0801110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0dc90c941086e18fb9fb5c6c097b479b15f1bc5fcd36b91bc6ef2eac60ea66b. 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/SE22T1400202.